Unit Rates
Solving
Proportional?
100

10 hamburger meals cost $60. How much would 15 hamburger meals cost?

$90

100

Solve for x

7x = 63

x = 9

100

6/10 = 12/20

Yes

200

Jane wants to add chocolate chips to her trail mix. A 3-pound bag of chocolate chips costs $3.22. What is the unit price? Round to the nearest cent.

$1.07 per pound

200

x/3 = 15

x = 45

200

4/15 = 2/7

No

300

If 5 pizzas cost $60, how much would 9 pizzas cost?

$108

300

15/x = 3/4

x =20

300

5/15 = 3/9

Yes

400

A 6 pack of soda cost $2.46. Find the cost of one soda

$0.41

400
4/9 = 2/x

x = 4.5

400
True or false:

A proportional line on a graph can be curved

False, it must be straight

500

The price for 11 ballpoint pens is $11.77. Which of the following represents the same price per pen?

A: 4 pens for $4.44

B: 5 pens for $6.05

C: 6 pens for $6.42

D: 7 pens for $7.82

6 pens for $6.42

500

The school talent show is 90 minutes long. The average rate of the show is about 10 acts every 30 minutes. At this rate how many acts will there be in the talent show?

30

500

True or False

A proportional line MUST go through the origin on a graph

TRUE
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