Math Ratios and Proportions Review

Norshaura has a recipe that requires 3/4 teaspoons of butter for every 2 cups of milk. If Norshaura uses 3 cups of milk, how many teaspoons of butter are needed?

• 1 1/8 teaspoons

• 1/2 teaspoons

• 1 3/8 teaspoons

• 7/8 teaspoons

The ratio of dogs to cats at the animal shelter is 4:1. If there are a total of 85 dogs and cats at the shelter, how many dogs are at the shelter?

• 17 dogs

• 51 dogs

• 68 dogs

• 72 dogs

Which table shows a proportional relationship between x and y?

• A

• B

• C

• D

What does the constant of proportionality represent?

• The total number of cookie batches baked

• The total number of cups of chocolate chips used

• The number of cookie batches per cup of chocolate chips used

• The number of cups of chocolate chips used per cookie batch

What is the constant of proportionality (in miles per hour) based on the table?

• 45

• 90

• 135

• 2

What is the constant of proportionality?

• $3

• $4

• $2

• $9

If the ratio of boys to girls in a class is 3:4, how many boys are there if there are 20 girls?

• 15

• 25

• 10

• 30

• 4

• 6

• 8

• 10

Which rate is NOT equivalent to the others?

• 4 for $1.00

• 6 for $1.50

• 10 for $2.00

• 12 for $3.00

Three pounds of apples cost $4.68. How many pounds of apples can you buy for $14.04?

• 9 lbs

• 8 lbs

• 12 lbs

• 7.5 lbs