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Ratios
Unit Rate
Proportions
Word Problems
Vocabulary
100
Write the ratio as a fraction in simplest form: 8 to 30
What is 4/15
100

410 miles in 16 gallons

What is 25.63 miles/gallon

100
Do each pair of ratios form a proportion? 2/3 and 6/9
What is Yes. (18 = 18)
100
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
100

A ___________ is a comparison of two quantities by division.

Ratio.

200

Write the ratios of I's to amount of letters in the word "Mississippi"

What is 4/11

200
1500 words in 25 minutes
What is 60 words per minute
200
Do the ratios form proportions? 5/4 and 25/16
What is No (80;100)
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

Write the ratio as a fraction in simplest form: 66 inches to 72 inches

What is 11/12

300
$1.12 for 8.2 ounces
What is $.14 per ounce
300
Do the ratios form proportions? $8/20 lbs and $24/60 lbs
What is Yes (480 = 480)
300
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
300

A _____________ is a comparison of two quantities that have different units.

Rate.

400
There are 140 students in 8th grade. If 80 of the students are girls, write the ratio of girls to boys in 8th grade.
What is 4/3
400
Which is the better buy? $3.29 for a 16-ounce bag of candy $2.99 for a 12-ounce bag of candy
What is $3.99 for 16-ounce bag = $0.21 per ounce
400
Do the ratios form proportions? 5 ft/7 s and 25 ft/ 49 s
What is No (245;175)
400
Annie bought 3 bags of special candy for $1.20. How much do 8 bags of candy cost?
What is $3.20
400

_________ are rates in which the second quantity is one.

Unit rates.

500

Write the ratio as a fraction or whole number in simplest form 30 miles in 5 minutes

What is 6:1

500

Ethan can buy 4 CDs for $71.96 at CD Express or 9 CDs for $134.55 at Music Rox. Which has the better unit cost? What is the unit cost of the better buy?

Music Rox has the better buy (14.95 per CD).

500

Do the ratios form proportions? 21 mi/7 hours and 15 mi/ 3 hours

No 

500
The moats separating the people from the animals are 5 m wide for bears and 4 m wide for leopards. If the bears' moats is 4 m deep, how deep should the leopards' moat be?
What is 3.2 m for the leopards
500

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

Proportion.