7.4C Proportionality

7.4B Unit Rates

Learning Objective

Today, I will practice using unit rates to solve real world problems

Essential Question

How do you determine proportionality from verbal representation? 

Unit Cost

The unit cost is the cost per item or the cost per

unit.

For example if an 8-ounce bottle of lotion cost

$1.60, then the unit cost is 0.05 ounces per cent.

Real Life Unit Rates

Open Ended

Convert to a unit cost.

5 bottles of water for $3.95.

Multiple Choice

Which one has the larger unit rate. Show your work.

• 150 miles in 3 hours

• 208 miles in 4 hours

Multiple Choice

Which one has the larger unit rate?

• $25 for 5 hours of work

• $42 for 7 hours of work

Open Ended

Convert the following to a unit rate. Mary drove 324 miles in 6 hours.