Review Ratios and Proportions

There are 480 calories in a box of 6 granola bars. How many calories would there 

be in 8 granola bars? Write a proportion to solve.

• 80 calories each

• 640 calories

• 480 calories

• 360 calories

A 6 ounce juice costs $0.96. An 8 ounce juice costs $1.12. Use unit rates to find which juice is the better buy.

• The 8 oz is better because is costs $0.16 per oz.

• The 6 oz is cheaper because is costs $0.14 per oz.

• The 8 oz is cheaper because is costs $0.14 per oz.

• The 6 oz is better because is costs $0.16 per oz.

Write the ratio of students to classes as a FRACTION in lowest terms.

• 24 to 1

The GREEN lacrosse team has a ratio of girls to boys that is 4 : 7. What is the ratio of boys to TOTAL TEAM members?

• 7 : 11

• 4 : 11

• 7 : 4

• 8 : 14

The GREEN lacrosse team has a ratio of girls to boys that is 4 : 7. The RED lacrosse team has a ratio of girls to boys that is 3 to 5. If both teams have 12 girls , which team has more boys? (make proportions)

• The GREEN team has more boys

• The RED team has more boys

• They have the same number of boys

What is the unit rate for 45 pickles in 3 jars.

• 18 : 1

• 15 to 1

• 15 pickles per jar

• 42 pickles per jar

Simplify the ratio. Write in the same format.

45/15

Simplify the ratio. Write in the same format.

8 to 6

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

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