Monday, November 16, 2009

how I stopped a alien invation using proportion

An alien landed in the middle of the city and he/she was going to contact the other aliens and destroy the Earth unless if somebody would answer 3 proportion questions and I just happened to be walking by so I will.

#17
Fresh pickerel is advertised in a local market.
2kg
Fresh pickerel
17.5o

a)How much will 6kg of pickerel cost?

6 kg of pickerel will cost \$52.50.

b)Use a proportion to find the cost of 1600g of pickerel.

1g=o.oo1kg 1x1600=16oo/o.oo1x1600=1.6g

1600 g of pickerel will cost \$14.58.

#18
At an amusement park, a new thrill ride was introduced. it costs \$7.50 for 3 rides on the wild slider.

a) what is the wild sliders unite rate per ride?

the wild slider's unit rate per ride would be \$2.50/ride.

b) at this rate how much will it cost for 18 rides on the wild slider? Determine the answer in two different ways.

My first way is

My second way is

#19

Determine the missing value in each equivalent fraction.

a) 3/4=18/44=9/12

b)48km/\$16=144km/\$48=192km/\$64

1. good job!

well explained..but it would be better if you make your diagram more clearer to make it easy to underestand

2. Good Job Alex! Very well explained, but you should add some color to highlight the important stuff :]