Review Ratios, Rates, Proportions

What is the ratio of red apples to green apples

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

A class has 15 boys and 20 girls. What is the boy:girl ratio in simplest form?

• 4 to 5

• 10 to 13

• 3:4

• 3:5

There are 4 birds and 6 snakes. What is the ratio of birds to snakes?

• 6/4

• 4/6

• 1/3

• 10/16

Which problem would this proportion correctly solve? 

• For every 3 ounces of lemon mix you need 7 cups of water. How much lemon mix would you need for 9 cups of water?

• For every 3 ounces of lemon mix you need 7 cups of water. How much water would you need for 9 ounces of lemon mix?

• For every 7 ounces of lemon mix you need 9 cups of water. How much water would you need for 3 ounces of lemon mix.

Solve the proportion.

• n=6

• n=24

• n=7

• n=8

Solve for the variable:

• 41

• 43

• 47

• 49

Does this show a proportional relationship?

• Yes

• No

• I'm not sure, I need extra help!

Which is NOT equivalent to 3:5?

• 15:25

• 9:15

• 21:28

• 30:50

The ratio of 12 apples to 8 bananas may be written as

• 8:12

• 2:3

• 3:2

• 16:24

Make the following ratios equivalent: 20/b = 40/26

• b= 13

• b=52

• b=7

• b=12