Proportions from Ratios

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• 15

• 20

• 25

• 30

There are 4 trucks for every 5 cars in a parking lot. How many trucks and cars could be in the parking lot?

• 72 trucks and 73 cars

• 64 trucks and 80 cars

• 84 trucks and 100 cars

• 96 trucks and 110 cars

Seventy-five 6th-grade students chose to watch a movie on the last day of school. This is 25% of the 6th-grade class. How many total students are in the 6th grade?

• 100

• 200

• 300

• 400

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?

• 3 : 8

• 3 : 5

• 2 : 8

• 2 : 5

Are the two ratios proportional?

• YES

• NO

The amount of eggs and the cups of cream needed to make egg nog have a proportional relationship. Complete the table.

• 5/1 & 5/1

• 10/2 & 25/5

• 1/5 & 1/5

• 2/10 & 5/25

Is the pair of ratios proportional?

• yes

• no

An elevator moves at a constant rate of 18 feet in 3 seconds. A second elevator moves at a constant rate of 40 feet in 5 seconds.

The situation ​ ​ (a)   a proportional relationship because ​ (b)  

• does not represent

• the ratios are different

• represents

• the ratios are equivalent

Your answer must be in SIMPLEST FORM.

• 1/3 c. orange juice to 1 serving of fruit smoothie

• 6/5 c. orange juice to 1 serving of fruit smoothie

• 6/15 c. of fruit smoothie/1 c. orange juice

• 2/5 c. orange juice to 1 serving of fruit smoothie

A set of stickers contains 4 hearts for every 6 stars. Which choice contains an equivalent ratio of hearts to stars?

• 6 hearts to 9 stars

• 2 hearts to 4 stars

• 1 heart to 3 stars

• 8 hearts to 10 stars