%%%%%'s Rate Growing Post

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Definitions:

• Define ratio: The relation between quantities (or parts of things)
• Define rate:Compares two quantities measured in different units

Questions:

1.What is the difference between ratio and rate?

• A ratio is the comparison between two numbers with the same unit and a rate is the is an indication of the measurements of different units per unit.

2.Choose one of the questions page 60 and answer it.

• Mala is shopping for honey. Her favorite brand is available in two sizes
• Jar 1- 250 mL
• Jar 2-1000 mL

A)Estimate which is the better buy. Show your thinking.

I think jar 1 is the better buy

Here is my thinking:

Jar 1 = 250 ml = $2.29

• 250/250=1
• 2.79/250=0.011=0.011 times 10 =$ 0.11/ml

Jar 2= 1000 ml

• 1000/1000=1
• 9.59/1000=0.0095=0.0095 times 100= $0.95/ml

3.Choose one of the questions on page 61 and answer it.

Shannon buys 12 granola bars for $9.96.
a) Determine the price per bar. Give your answer in dollars and cents.

• 12/12=1
• 9.96/12=0.83
• 0.83 for 1

B)Explain whether your answer in part a) is a ratio or a rate.

• It is a rate because it express to quantities in different units.

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PART 2 !

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1) What would the recipe look like if it had served 10 people? Show your calculations.

10/4 = 2.5

-ground beef - 0.5 x 2.5 = 1.25 lb

-medium onion (diced) - 1 x 2.5 = 2.5
-stalk celery (finely diced) - 1 x 2.5 = 2.5
-clove garlic (minced) - 1 x 2.5 = 2.5
-canned tomatoes (chopped) - 14 x 2.5 = 35 oz
-canned tomato paste - 0.5 x 2.5 = 1.25
-parsley - 1 x 2.5 = 2.5 tsp
-basil - 1.5 x 2.5 = 3.75 tsp
-oregano - 1 x 2.5 = 2.5 tsp
-sugar - 1 x 2.5 = 2.5 tsp
-worcestershire sauce - 0.5 x 2.5 = 1.25 tsp
-seasoning salt - 0.5 x 2.5 = 1.25 tsp
-bay leaf - 1 x 2.5 = 2.5

2) What would the recipe look like if you had to only serve 1 person? Show your calculations.

10/1 = 10

-ground beef - 1.25 /10 = 0.125 lb
-medium onion (diced) - 2.5/10 = 0.25
-stalk celery (finely diced) - 2.5/10 = 0.25
-clove garlic (minced) - 2.5/10 = 0.25
-canned tomatoes (chopped) - 35/10 = 3.5 oz
-canned tomato paste - 1.25/10 = 0.125
-parsley - 2.5/10 = 0.25 tsp
-basil - 3.75/10 = 0.375 tsp
-oregano - 2.5/10 = 0.25 tsp
-sugar - 2.5/10 = 0.25 tsp
-worcestershire sauce - 1.25/10 = 0.125 tsp
-seasoning salt - 1.25/10 = 0.125 tsp
-bay leaf - 2.5/10 = 0.25

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