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Ratios and Proportions
Ratios, Rates, and Unit Rates
Measurements
Solving Proportions
Vocabulary
100
Simplify to tell whether the ratios are proportional. 8:22 and 2:11
No
100
Yoshi’s yogurt contains 15 calories per ounce. How many calories are in an 8-ounce container of Yoshi’s yogurt?
120 calories
100
4.5 liters to millileters
4500 mL
100

Do each pair of ratios form a proportion? 2/3 and 6/9

What is Yes. (18 = 18)

100
A __________ is a comparison of two quantities by division.
Ratio
200
Simplify to tell whether the ratios are proportional. 6:9 and 10:18
no
200
Emily earns $7.50 per hour. How much does she earn in 3 hours?
$22.50
200
2.5 pounds to ounces.
40 oz.
200

The ratio of vanilla pudding to chocolate pudding in a banana split pie is 4 to 3. Olivia has 64 oz of vanilla pudding. How much chocolate pudding does she need?

What is 48 ounces.

200
Ratios that make the same comparison are ____________________.
equivalent ratios
300
Simplify to tell whether the ratios are proportional. 49:28 and 35:20
Yes
300
An antelope can run 152.5 miles in 2.5 hours. What is average speed of the antelope?
61 miles/hour
300
124 millileters to centimeters
12.4 cm
300

Annie bought 3 bags of special candy for $1.20. How much do 8 bags of candy cost?

What is $3.20

300
A __________ is a comparison of two quantities that have different units.
rate
400

Write the ratio as a fraction in simplest form: 8 to 30

What is 4/15

400

1500 words in 25 minutes. How many wpm?

What is 60 words per minute

400
22 gallons to quarts
88 quarts
400

A bubble solution can be made with a ratio of one part detergent to eight parts water. Would a mixture of 56 oz. of water and 8 oz. of detergent represent the same ratio? Explain

no because the cross products are not proportional

400
_______________________ are rates in which the second quantity is 1.
Unit Rates
500

Write the ratio as a fraction in simplest form 30 seconds to 5 minutes

What is 6:1

500

$1.12 for 8.2 ounces. What is the cost per ounce?

What is $.14 per ounce

500

If there are 1200 calories in an 8 oz piece of cheesecake, how many calories are in a 3 oz piece of cheesecake?

What is 450 calories

500

Julie was able to walk 16 miles through the park in 6 hours. How long will it take her to walk 24 miles through the park?

What is 9 hours

500

A ________________ is a statement that two ratios or rates are equivalent.

Proportion