Proportions Assignment

Pizzas are $10 each plus a $2 delivery fee. Is the cost proportional to the number of pizzas ordered?

• Yes, unit rate is $10

• Yes, Unit rate is $12

• No, unit rate not constant

• No, because Little Caesars is $5

12 ounce shampoo bottle lasts Mike 16 weeks.  How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 weeks

• 6 weeks

• 30 weeks

• 20 weeks

Sue types 3 pages in the same amount of time that Mary types 4.5 pages.  If Sue and Mary start typing at the same time, how many pages will Mary have typed when Sue has typed 11 pages?

• 16.5 pages

• 16 pages

• 15 pages

• 15.5 pages

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line.  How long is the waiting time when 240 people are in line?

• 90 min

• 30 min

• 32 min

• 30 min

A shop produces 39 wetsuits every 2 weeks.  How long will it take the shop to produce 429 wetsuits?

• 18 wk

• 20 wk

• 22 wk

• 24 wk

Solve:  y / 7 = 16 / 28

• 6

• 3

• 4

• 5

The class has 12 girls and 16 boys. What is the ratio of total students to boys? (simplest form)

• 28/16

• 7/4

• 16/28

• 12/16

Simplify the complex fraction shown.

• 9/40

• 40/9

• 10/36

• 5/18

Determine whether each pair of ratios form a proportion

• proportional

• nonproportional

Determine whether each pair of ratios form a proportion

• proportional

• nonproportional