Proportions and Proportion

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

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

• 24 feet

• 21 feet

• 27 feet

• 32 feet

At the same time a 6 foot person casts a 2 foot shadow, a nearby flagpole casts a ten foot shadow.  How tall is the flagpole?

• 3 feet

• 10 feet

• 16 feet

• 30 feet

If a car travels 280 miles in 7 hours, how far will it travel in 12 hours?

• 480 miles

• 1,960 miles

• 84 miles

• 25 miles

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

Which best describes the graph represented in this table?

•  proportional

• non-proportional

Is the graph proportional or non proportional?

• Proportional

• Non-Proportional

Which graph is proportional?

• A

• B

• C and D

• All of the graphs are proportional

Which relationship is an example of a proportional function?

• a rental company charges $80 per day and a one-time fee of $24

• a taxi ride costs $2 for the first  mile and $4 for each additional mile

• a gym membership costs $30 per month and an additional annual registration fee of $75

• Beverly earns $150 a week for 10 week

Solve for x 

• x = 98/5

• x = 5/98

• x = 101/5