Runcel's BOB on Graphing(late)

Three things I know about graphing:)

1:) A graph can be distorted , you can a put a break in the y-axis.

- A break in the y-axis of a graph means the length of the axis has been shortened.

2:) There are many different Type of graphs:)
EX:)
bar graph

line graph

circle graph

pictograph

3:) Every graph has to have labels or titles

danielle graphing [bob]

Three things I now know about graphing

The first thing is that there are different types of graphs
eg. circle graph, bar garph, double bar graph, pictograph, and line graph.

the second thing about graphs are that they are used to represent data in a way you'll understand.

the third thing is that there's allway's something that tells you what the graph is about.

what I need to improve on:
I need to improve on remembering the y-axis and the x-axis.

sorry that this is so late but can you please comment

alex's graphing BOB

Three things I know about graphing are:

1)Every graph uses numbers

2)Almost every graph has title and a few words on the left and bottom telling what is happening their. Only the circle graph does not have any words on the left or bottom and that is because it does not need it.

3)The bar graph, the double bar graph, the line graph, and the double line graph all have a X and Y axis.

What I need to improve on is :

What I need to improve on is I should have put a circle graph,I should have explained more of what I should have said in my paragraphs, and made my paragraphs less confusing.

Telisa's Bob 1 & 2, ratio's, October 30, 2009

Bob #1 ...

This is My Bob, Sorry for it being late ...


Legend * Headings, Definitions, Answers / work, My notes, questions. *

Three Term ( part ) Ratio - comparing three quantities measured in the same units.

Red to Blue to all
2 : 3 : 12

~~~~~

Blue to Silver to Purple
3 : 1 : 1

~~~~~~~~~ Part to Part Ratio : Comparing one part of a group to another part of the same group

Red to Green
2 : 3

~~~~~

Silver to Blue
1 : 3

~~~~~

Gold to Red
1 : 2

~~~~~~~~~~~~Part to Whole Ratio : Comparing one part of a group to the whole group


Blue to all
3 : 12

~~~~~~~~~~~~~~~


Red to all

2 : 12


~~~~~~~~~~~~~~~~~~~~~~~

Apparently I am supposed to choose one of the ratios I just did and show it in ...

Ratio - 3 : 12

Ratio Notation - three to twelve or Blue to all

Fraction - 3 / 12 or Blue / all

Decimal - 0.25

Percent - 25 %

My three question's are ..

1) If I double the amount of crayons I have then what will the ratio of Blue, Red, Green to all be.

2) What would the percent be of the ratio 7 : 140.

3) What is the decimal answer for 9 : 58.

~~~~~~

Bob #2

What Did you get wrong on the Test.. How can you improve...


1) Most of my faults were because i did not convert the ratios to there lowest terms.

The reason why i had trouble with this was because Mr.Harbeck told us to only convert it to lowest terms if the question said to and because of that I did not convert it unless it said to.

2) The only question i had a real problem's with was # 12, 13, and 14.

In a group of 84 students surveyed, the ratio of student preferenceis seven oatmeal eaters to four granola eaters to three toasted O eaters.

12. Of the 84 students, how many prefur oatmeal.

13. Of the 84students, how many prefur granola.

14. what percent ( to one decimal place ) of the group prefurs Toasted O's .


Another Question that gave me trouble was ...

Write each ratio in lowest terms,

8 : 32 ~~~~


10 : 80 ~~~~


5 : 125 ~~~~


18 : 27 ~~~~


Thank You for reading my Post ...Please Comment
( extra: to get a ÷ sign hold down option* alt* and press the back slash * / * button )

Runcel's BOB, BOB 2,Ratio October 30/09

Today for blog we must do three Part- to -Part ratio ,Two Part to Total ratio , and Three part ratio.

Part -to -Part Ratio:)
part to part ratio- compare different parts of group to each other.

Here are three examples of a Part-to-Part ratio.

1:) Green to blue
3:3
2:) Yellow to silver
2:1
3:) Orange to Yellow
1:2

Part- to -Total ratio:)
Here are two examples of Part-to-Total ratio:)

Blue to whole
3:12

Yellow to whole
2:12

And here are Two examples of three part ratio:)

Yellow to blue to Green
2:3:3

Green to yellow to Silver
3:2:1

Here are my three questions:)


I have 4 red crayons, 2 blue crayons, 1 white crayons, 3 orange crayons, 6 green crayons, and 7 yellow crayons, and a total of 23.

Word ratio:)
1:)Give the word ratio of 3 to 23 and turn it into fraction, decimal, and percent.

2:)Give the word ratio of 1 to 6 to 4 crayons. and choose one of these that describes them if they are three term ratio, two term ratio, or a percent.

3:)Give the word ratio of 6 to 2 and turn it into a percent.

BOB 2

What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake.How will you remember what to do in future tests.

My Mistakes from the test:)

4:) Four students are running for student council president . Of 30students polled, 15 chose mike, 3 choose patricia ,6 chose brian, and the rest choose karen. What is the ratio for girls to votes for boys in the student council election? Express the ratio in lowest terms .

A. 3:7 B.7:3 c.15:6 d.21:9

5:) Eric is able to stop 85% of the shots on goal. If he faces 27 shots on goal, how many goals would likely be scored on him?

a.3 b.4 c.9 d.15

In a group of 84 students surveyed , the ratio of student preference is seven oatmeal eaters to four granola eaters to three toasted O's eaters.

12:) of the 84 students how many prefer oatmeal
on number 12 I put 7 but the right answer is 42

I got the answer by multiplying 7 by 6:)

13:) of the 84 students how many prefer granola
on number 13 i put 4 but the right answer is 24

I got these answer by multiplying 4 by 6=24

18:) In a student election Carol gets 60% of the votes. If there were 485 votes cast, how many votes did carol get?

carol-60 =6/4=1.5
total-100 485.

Edmil's BOB, BOB2, Ratio October 28, 2009

BOB 1


















Part-to-Part Ratio

Yellow to Gray
2 : 1
Orange to Green
2 : 2
Green to Yellow
2 : 2

Part-to-Whole Ratio

Orange to Total
2 : 24
Red to Total
3 : 24

Three Part Ratio

Green to Gray to Yellow
2 : 1 : 2

Red to Orange to Green
3 : 2 : 2

____________________________________________________________________________________

BOB 2

What were the mistakes you made on your test? You had to sow the mistakes and how you will improve for some other tests.

-This is one of my mistakes. I forgot to put the Ratio Table I just put the answer.






















I would improve for the next test by putting a Ratio Table

Edmilr8-16 BOB graphing

3 Thing I know about graphing
1. There are 6 different types of graphs.
2. All graphs are from smallest to biggest numbers.
3. Always put in intervals, titles, and labels, so people would know what your talking about.
Thing I need to improve on graphing.
I need to improve on remembering the y-axis and x-axis.

BOB- Ratio

Waaaazzzzaaap.


3 Part-To-Part ratios
1.Greens to Blue
5:1
2.Yellows to Reds
2:3
3.Blues to Yellows
1:2

2 Part-To-Total ratios
1.Greens to total
5: 11
2.Blues to total
1:11

2 Three-Part ratios
Blues to Yellows to Greens
1:2:5
Reds:Blue:Yellows
3:5:2

Blues to Yellows- 1:2
Ratio- 1:2
Fraction- 1/2
Decimal- 0.5
Percent- 50%

Equivalent fractions:

2:3
x2-4:6-x2
x3-6:9-x3
x5-10:15-x5

Questions:
1.If the ratio '1:2' changed to '2:2' what would the percent be?
2.What is the percent for '1:11' (Blues to Total)
3.What is the Decimal for '2:3' (Yellows to Reds)


BOB part 2.

1. What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.
I didn't read the questions carefully/properly
- I could improve by reading it over again after I finish my test.
- Study really hard so I can answer the questions correctly.
I will remember what to do in future tests by getting help from a teacher who can explain to me ways I can solve my question.
2. Rewrite 2 questions that gave you difficulty with different numbers. Answer the questions correctly in the comments to your blog. Encourage others to participate at your blog by getting them to answer your questions.

17.
Team Scored by Scored Against
Baseball Team A 20 16
Basketball Team A 230 184
Hockey Team A 12 8

18.
In a student election Carol gets 60% of the votes. If there were 485 votes cast, how many votes did Carol get?
-Carol got 95 votes.

Justin816 BOB, RATIO

Part to Part ratio
- blues to orange , 4:3.
- green to pink , 2:4
- brown to yellow , 2:2
Part to Whole ratio
- black to whole , 1:22
- green to whole , 2:22
Three term ratio
- yellow to green to blue , 2:2:4
- orange to whole to brown , 3:22:2
ratio - 2:4
fraction - 2/4
decimal - 0.5

percent - 50%
My questions :
1 - What colors are used in the ratio 3:1?
2 - What is another way of making an 2 part ratio ?
3 - What could another 3 part ratio be ?

THANKS FOR READING ! :D


Part 2

1.What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.

- I should have highlighted the important information I would need on each question.
- I didn't explain my work.
- I didn't concentrate on the questions that I thought was easy.

I will try to concentrate more and read my questions carefully.

2.Rewrite 2 questions that gave you difficulty with different numbers. Answer the questions correctly in the comments to your blog. Encourage others to participate at your blog by getting them to answer your questions.

1- Write each ratio in lowest terms.

a) 8:32 b) 10:80 c) 5:25 d)18:27

2- In a student election carol gets 60 % of the votes. If there were 485 votes cast, how many votes did carol get?

BOB, Ratios, Warren's

My BOB on ratios

Part to Part Ratios

1 part to part ratio is : Green to Blue, Green:Blue, 3:3

2nd part to part ratio is : Red to Yellow, Red:Yellow, 2:2

3rd part to part ratio is : Gold to Green, Gold:Green, 1:3, 1/3, 33.33%,

Part to Total Ratios

1st part to total ratio is : Yellow to Total, Yellow:Total, 2:12

2nd part to total ratio is : Blue to Total, Blue:Total, 3:12

Three Part Ratios

1st three part ratio is, Blue to Green to Red, Blue:Green:Red, 3:3:2

2nd three part ratio is, Gold to Silver to Purple, Gold:Silver:Purple, 1:1:1

3rd three part ratio is, Blue to Orange to Gold, Blue:Orange:Gold, 3:1::1

1) What is the Ratio of Blue:Red:Purple

2) What is the Ratio of Green:Total

3 What is the Ratio of Red, Orange, Blue,:Totlal

BOB on Elizabeth's ratio/ BOB 2 late homework.

>,< >.< >,< >.<Wheeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Part to Part ratio

Blues to greens ( 3:2)

Yellow to Orange(2:3)

White to Pink ( 1: 2)

Part to Whole ratio

Green to All (2:22) or 1:11

orange to All (3:22) or 1 1/2 : 11

Three Term Ratio

Pink : Green : Blue ( 2:2:3)

orange: white : red (3:1:1)

Yellow To ORange

Ratio- 1:2

Fraction- 1/2

Decimal - 0.5

Percent - 50%

THE QUESTIONS ?

1 Why is there fraction in the ratio, Part to whole ratio?

2. Is there another way with out using any fraction in a ratio?

3. Use a Part to Whole ratio and simplified it


BOB 2 : The First real Test of Ratio

1: What is the mistake that I did in the test ?

The Mistake in Multiple choice was:
3 1
4 2
5 6
7
8
9
10

The mistake was in " Show your work" is....

12. 13. 14. 11.
a) 8:32 b)10:80 c)5:125 d)18:27
4:8 5:60 1:25 6:9

16. 17. 18. by doing a ratio of 60% of the student election that were voted by 485 cast.

0.6 /485= 291 or 291 x 100 = 2.91

BOB on Ratio's

Part to Part Ratio's

Blue to green 3:3

Gold to Red 1:2

Blue to Red 3:2

Part to Whole Ratio's

Yellow to All 2:12 or 1:6

Red to All 2:12 or 1: 6

Sliver to All 1:12 or 1:6

Three Part Ratio's

Yellow to Blue to Green 2:3:3

Red to Gold o Silver 2:1:1

Purple to Gold to Blue 1:1:3

Gold to Red

Ratio- 1:2

Fraction-1/2

Decimal-0.5

Percent-50%

Questions

1. What is the decimal for Red to All? (2:12)

2.What is the Ratio for Red to Gold to Silver?

3.Make 2 Part to Part Ratio's

Karra816 , BOB- Ratio

Q1.Part-To-Part ratios

1.Greens to Blue
6 : 1
2.Yellows to Reds
2 : 4
3.Blues to Yellows
1 : 2

Q2.Part-To-Total ratios

1. Yellow to total
2 : 11
2.Green to total
6 : 11
Q3. Three-Part ratios

Blues to Yellows to Greens
1: 2: 5
Reds:Blue:Yellows
3 : 5 : 2

Blue to Yellows- 1:2
Ratio- 1:2
Fraction- 1/2
Decimal- 0.5
Percent- 50%

My 3 questions are...

1. What is the percent for "2:11" yellow to total?
2. What is a decimal for "1:2" blues to yellows?
3. If the ratio changed from "1:2" to "2:3" what would its fraction be?

-BOB2-

1.What were the mistakes you made on your test. Show examples of answers that were wrong. What was your mistake. How will you remember what to do in future tests.
My first mistake was not making the number in lowest terms.
My second mistake was not reading the questions right.

Rewrite 2 questions that gave you difficulty with different numbers.

Team Scored By Scored Against
Baseball Team A 20 8
Basketball Team A 230 92
Hockey Team A 12 4

In a group of 42 students surveyed, the ratio of student preference is 3.5 oatmeal eaters to 2 granola eaters to 1.5 toasted O eaters.

12.Of the 42 students how many prefer oatmeal?
13. Of the 42 students, how many prefer granola?
14.What percent (to one decimal place) of the group prefers toasted O's?

BOB on Ratios by Gordon 8-16

Today Mr.H gave us some homework on ratios and a BOB so here it is.

We need to write a certain number of ratios about this picture.

First we need to make 3 Part to Part Patios

1. Vowels to Blue Letters

6 : 9

2. Blue Letters to Red Letters

9 : 6

3. Vowels to Red Letters

6 : 6

Next 2 Part to Total Ratios

1. Vowels to Total

6 : 15

2. Red Letters to Total

6 : 15

And Finally 2 Part to Part to Part Ratios

1. Vowels to Red Letters to Blue Letters

6 : 6 : 9

2. Green Letters to Blue Letters to Consonants

1 : 9 : 8

But were not quite done now I have to convert 1 of these fractions into a ratio notation, a fraction, a decimal, and a percent form.

I chose Vowels to Red Letters

Ratio Notation

6 : 6

Fraction

I'll re-write the word Ratio as well Vowels/Red Letters

6/6

Decimal

1.0

Percent

100%

Now heres how to make an equivalent ratio.

An equivalent ratio is a fraction that represents the the same ratio but in a simplified or multiplied form for example

6 : 6 can be represented as 3 : 3 or 12 : 12 or even as high as 6000 : 6000 as long as the amount the ratio represents does not change and it is a multiple or denominator of the original ratio for example 6 : 6 cannot be represented as 12 : 13

And I'm almost done I just have to give you guys 3 questions for you and me to answer in the comments .

1. Create 2 ratios involving consonants.

2. Create and equivalent ratio for the ratio 52 : 70 (but try not to put the same one as someone else)

3. What is the ratio of Red Letters, Blue Letters, to Total?

Don't Forget to study for the upcoming test and don't forget to comment.

Part 2

1. What were the mistakes you made on your test? Show examples of answers that were wrong. What was your mistake?How will you remember what to do in future tests?
I didn't read the questions properly and missed complete portions of the question, for example I missed the words "In lowest Terms" at least twice.
I will remember what to do on future tests by underlining importent parts of the questions and by studying harder.

2. Rewrite two questions that gave you difficulty with different numbers. Answer the questions correctly in the comments to your blog. Encourage others to participate at your blog by getting them to answer your questions.

Stephanie's BOB and Ratio homework

Heeeeeeeeeeeey Guuuuuuuuuuuys :)

Part to Part Ratios:

1) Blue to Pink 4:2

2) Red to Yellow 2:2

3) Green to Blue 3:4

Part to Total Ratios:

1) White to Total 1:22

2) Yellow to Total 2:22

3 Part Ratios

1) Blue to Pink to Black 4:2:1

2) Green to White to Red 3:1:2

The ratio I'm going to be using for the next 5 forms is 1:4.

Ratio Notation:

1:4

Fraction:

1/4

Decimal:

0.25

Percent:

25%

How to make an equivalent ratio:

And whatever you do to the top you do the bottom.

3 Questions:

1) What is the ratio for common colors to total?

2) Give me 2 three part ratios.

3) What is the ratio for dark to light colors?

LEAVE A COMMENT :) and thanks for reading :D

PART 2

heey guuuys :)

So Mr. Harbeck told us to make a scribe about our mistakes and what not.

The mistakes I had on the test was:

Number 5) Eric is able to stop 85% of the shots on goal. If he faces 27 shots on goal, how many goals would likely be scored on him?

- I guessed on that one because I didn't get it. I picked B

I was suppose to make a ratio of stops to total.

Stops 85% ?

------- ------ = ------

Total 100% 27

0.85x27=23

Number 8) A picture frame has a width to length ratio of 5:7. If the width of the photo is 9cm, the length of the photo is

- I guess on that one to, because I didn't get it either. I picked C

I was suppose to make a ratio of w:l

w:l

5:7

9:12.6

9/5=1.8

7x1.8= 12.6

What I had difficulty on was.

Number 17) Use the data in the table below to determine which sports teams have equivalent scored by to scored against ratios.

Team | Scored by | Scored against

Baseball | 10 | 8

Team A | |

Basketball| 115 | 92

Team A | |

Hockey | 6 | 4

Team A | |

Number 18) In a student election Carol gets 60% of the votes. If there were 485 votes cast, how many votes did carol get?

Please leave a comment for the questions !

Jomari's BOB Ratio

3 part to part ratios
Blue to Red
5:2
Yellow to Green
2:3
Orange to White
2:1

2 part to total ratios
Blue to Total
5:21
Red to Total
2:21

2 three part ratios
Blue to Red to Green
5:2:3
Purple to Pink to Total
1:1:21


Blue to Red
5:2

You write this as a fraction by putting the number on the left of the : on top and the right on the bottom. Every time you write a ratio as a fraction, you need to make a new word ratio. This is how it should look if it was a fraction:

Blue 5
------ --
Red 2

You can find a decimal by using the fraction. You can find a decimal by dividing the numerator by the denominator.This is how you can show how to get a decimal:

5/2=2.5 The decimal is 2.5

You can find percent by converting the decimal. Every whole number in the decimal equals 100%. every tenth equals 10%, and every hundredth equals 1%.If the decimal has a number less then one hundredth, you have to round to the nearest hundredth.

2.5 = 200%+50%
2.5=250%

Yellow to Green
2:3

You can find equivalent ratios by multiplying or dividing the original numbers in a ratio.

Yellow to Green
2 : 3 x2
4 : 6 x3
12:18

3 questions
1. One smoothie is made out of 2 strawberries, 1 banana and 4 cups of milk.
If you drank 2 smoothies, how much bananas would you have drank compared to strawberries? Don't simplify your answer.
2.A very successful farm has 12 cows, 5 pigs and 3 chickens.
The owner of the farm is looking to extend the capacity of the farm by 75%. How much cows compared to chickens and pigs should he get? Don't simplify your answer.
3. A box has 10 pencil crayons. 80 percent of them are purple, 5 percent of them are yellow and 15 percent of them are green. How much purple compared to yellow compared to green pencil crayons are in the box? Simplify your answer.

Part 2:

Some mistakes on my test:

For question 17, I said that there was no equivalent scored by to scored against ratio. I thought this because none of the ratios could be simplified to become equivalent. I was wrong because if you divide 10 and 8, you get the same answer as 115 and 92. When you divide equivalent ratios, you get the same answer. I will remember to divide ratios to find out if they are equivalent to other ratios.

Rewrite 2 questions that gave you difficulty with different numbers. Answer the questions correctly in the comments to your blog. Encourage others to participate at your blog by getting them to answer your questions:


3. A normal deck of playing cards has 52 cards in four suits (clubs, diamonds, hearts,spades) of 13 cards each. Two of the suits are black and two of the suits are red. The ratio of black cards to the total deck is.

a.1:1 b.1:2 c.2:3 d.2:4

Please try to answer my questions.

Bob on ratio Brendan8-16

Heeey guys!

Today in math class we did our review for out test tomorow . So wee had to work on BOB on the blog . So here I go

reds to green 3:1
blue to reds 1:3
yellows to reds 4:3

green to total 15 :2 [excluding motorcycles]
cyclist to total cars 7:8

Reds to greens to black 3:2:1
Blue to reds to black 1:2:1




3:1 , 33.33% ,1/3 and 33.33333

Simplifying 15:2 is 7.5 15 divided by 2 is =7.5 .

The picture you see on top circling the cars and motorcycles this is what I used for the work on top.


1.What is the ratio between the truck and the people on the motorcycles?
2.How much people are on motorcycles than cars? present this in word and ratio
3.What is the ratio between red cars and yellow cars.










BOB2


1) What were the mistakes I made one the test..
a) One mistake was, I didn't check over my answers.. Cause time was running out when I finished .

b) I didn't read the questions twice that's why I got some answers wrong.


c) I miscalculated a few questions..



How will I remember this for future tests?

I'll double check my answers, read over the questions that were difficult and triple check my calculations.


2 questions that were difficult for me were

1a) In a student election Carol gets 60% of the votes . If there were 485 votes cast,
how many votes did Carol get?


1B) Use the data in the table below to determine which sports teams have equivalent scored by to scored against ratios

BOB, ratio, tamika816, oct.20

I grouped these crayons in 4 different groups. GREENS- spring green, yellow green, green. BLUES- cadet blue, turquoise blue, sky blue. REDS- salmon, wild strawberry. OTHER- silver, yellow orange, purple, gold.

Part-to-part ratios
- GREENS to REDS
3:2

- BLUES to OTHER
3:4

- REDS to OTHER
2:4

Part-to-whole ratios
- REDS to total
2:12

- OTHER to total
4:12

Part-to-part-to-part
- GREENS to REDS to OTHER
3:2:4

- BLUES to OTHER to GREENS
3:4:3

Now I'm going to take REDS to OTHER and write it in ratio notation, as a fraction, as a decimal, and as a percent

ratio notation
2:4
fraction
2/4
decimal
0.5
percent
50%

Now I'm going to take OTHER to total and make an equivalent ratio.

An equivalent ratio is a ratio written in a lower term or a higher term.
To get a lower term you have to divide the numbers by any same number that will equal a whole number. To get a higher term you have to multiply the numbers by any same number. Example:

lower term 4:12= 2:6 I divided both numbers by 2.
higher term 4:12= 12:36 I multiplied both numbers by 3.

Here are 3 questions you should answer.
write blue to other as a fraction then write it 2 different ways.
write other to total as lowest term
Is greens to reds in the lowest term? Why?

BOB and Laura's Ratio Homework and Test Review

Part to Part Ratios:

1) Blue to orange 4:2

2) Pink to Yellow 2:2

3) Red to Brown 2:3

Part to Whole Ratios:

1) Pink to all 2:22 -or- 1:11

2) Peach to all 1:22

3 Part Ratios:

1) Orange to white to purple 2:1:1

2) Blue to pink to green

Ratio Notation:

2:2

Fraction:

2/2

Decimal:

1.o

Percent:

100%

Equivalent Ratios:

Equivalent Ratios are created by multiplying or dividing each part of the ratio by the same number.

For example: 2:3 = 6:9

I got this answer by multiplying each part of the original ratio by 3, then recording my outcome.

2 x 3 = 6

3 x 3 = 9

6:9

In the same way, this number can be simplified. By using the same number, but different operation.

6 divided by 3 = 2

9 divided by 3 = 3

2:3

*This is also how you know you did an equivalent fraction correctly*.

Here are your 3 questions:

1) Create 2 DIFFERENT ratios, using the SAME 3 colours.

2) What is the decimal form for the ratio yellow to blue?

3) Give to equivalent ratios for the fraction 4/5.

HAVE FUN!!! :)

Ok, it's time for part 2!

Here are the mistakes I made on my test: (Sorry Mr. Harbeck!)

1) Question #8: A picture frame has a width to length ratio of 5:7. If the width of the photo is 9 cm, the length of the photo is...

a) 11cm

b) 12.6cm

c) 14cm

d) 16cm

The correct answer is b. Because if you divide 5 by 7 you get o.71 and if you divide 9 by 12.6 you get o.71. Therefore they are equivalent ratios.

2) Question 10: A survey of students in the school found that 144 had Motorola cell phones, 60 had Sony phones, 48 had Nokia phones, and 36 had LG phones.

What percent of all of the phones were Motorola?

a) 14.4%

b) 25%

c) 50%

d) 77%

The correct answer is 50% because the sum of all of the phones is 288. If you divide that number by 2 you get 144. 288=100% 288/2=144 100/2=50.

3) Question #14: In a group of 84 students surveyed, the ratio of student preference is seven oatmeal eaters to four granola eaters to three toasted O eaters.

What percent (to one decimal place) of the group prefers toasted O's?

The correct answer is 28%. Because the amount of students who like toasted O's is 18. 84/18=4.67. 4.67 x 6=28.o2. (Rounded to one decimal place is 28.) I multiplied 4.67 by 6 because in order to get 18 students I had to multiply the simplified number of toasted O's eaters by 6.

An example of the wrong answer would be 15.1%. (That's what I put). Right now, I'm not really sure how I got that answer, but I will remember for future tests to do the right thing by reading the question more carefully.

Here are 2 questions to get your brains going! (They are from the test but use different numbers).

Eric is able to stop 58% of the shots on goal. If he faces 30 shots on goal, how many goals would likely be scored on him?

A change purse contains 5 loonies, 12 quarters, 15 dimes, 23 nickles and 45 pennies, (it's a big change purse). Compare pennies to dimes using a ratio. (Express in lowest terms).

PLEASE COMMENT!!! :D

BOB On Ratios by. Bruce 8-16

Hey guys,



Today Mr.Harbeck told us to create ratios on the picture we use and comment on them in our comments section.

















Pt. 1
Harbeck told us to use...

1)Part to Part-2 term ratio
2)Part to Whole- 2 term ratio
3)Part to Part to Part- 3 term ratio
4)Part, Part, Part to whole-2 term ratio

To create ratios.

1) greens to blues
3 : 3
2) greens to whole
3 : 12
3) gold to greens to blues
1 : 3 : 3
4) greens, blues, orange to total
3 , 3 , 1 : 12

Pt. 2
Harbeck also told us to create questions about the ratios and answer them in the comment box.

1) What type of ratio terms are the numbers 1, 2, 3 and 4.

2) Give an example of an equivalent fraction.

3) Give an example of a simplified fraction.

Don't forget to study for the ratio test on Wednesday. Don't forget to study the numbers Harbeck gave us in the homework book.






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Hey guys,

Harbeck told us to make a scribepost on the test.

1)What were the mistakes you made on your test?
Some of the mistakes I made on the test were Question #18.
The question was...
In a student election Carol gets 60% of the voted. If there were 485 votes cast, how many votes did carol get.
My answer was this.
289/485=(0.595)876288
0.595 x 100=59.5
59.(5)rounded up=60
carol got 289 votes
My mistake was forgetting to use a table ratio.
I will remeber that when you get a percentage question you should use a ratio table.

2)Write 2 questions that gave you difficulty on the test answer them in your comments section.

Question # 8
A picture frame has a width to length ratio of 5:7. If the width of the photo is 9cm, the length of the photo is

a)11 cm b)12.6 cm c)14 cm d)16 cm

Question # 7
A rapid transit train has 39 passengers on it as it starts it's run. At the first stop 12 passengers get off and 18 passengers get on. What is the ratio of the number of passengers who were on the train as it arrived in the first station to the number who were on the train when it left the first station? Express your answer in lowest terms.

a)2:3 b)13:15 c)18:12 d)27:39

Please leave a comment on the questions.