Math Review Ratios and Proportions

Proportions are __________________.

• a comparison of the same thing

• a linked relationship between different items

• a linked relationship between like items

• two equivalent ratios

Which is the correct percent proportion?

• whole/part = %/100

• part/whole = %/100

• part/whole = 100/%

• whole/% = part/100

If there are 3 boys to 4 girls, then how many boys would there be if there are 20 girls?

• 5 boys

• 10 boys

• 15 boys

• 20 boys

If there are 3 boys to 4 girls, then how many boys would there be if there are 21 students?

• 3 boys

• 6 boys

• 9 boys

• 12 boys

In an animal shelter, the ratio of cats to dogs is 3 to 5. If there are a total of 25 dogs at the shelter, how many cats do they have?

• 15

• 18

• 21

• 32

• A
• B
• C
• D

• A
• B
• C
• D

• A

• B

• C

• D

If a car drives 200 miles on 8 gallons, then how many miles per gallon did the car drive?

• 10 mpg

• 15 mpg

• 20 mpg

• 25 mpg

What percent is 1/5 equivalent to?

• 200%

• 20%

• 0.200%

• 2.00%