Proportional Reasoning

1. Find the unit rate of the ratio below:

30 cm of snow in 6 hours

• 6 cm of snow per hour

• 30 cm of snow per hour

• 5 cm of snow per hour

• 3 cm of snow per hour

Determine if the ratios are proportional.

4/5 and 15/20

• Yes

• No

A unit rate is a ratio with:

• A denominator of 1

• A numerator of 1

In the recipe of a lemonade 2 cups of sugar is needed for 3 lemons. How many lemons are needed for 6 cups of sugar?

• 4

• 6

• 8

• 9

What is the ratio to the picture shown, triangles to squares?

• 5:6

• 4:3

• 2:6

• 3:4

find the ratio

• 20:14

• 20:15

• 15:20

• 14:21

Find the value to "?"

• 25

• 35

• 20

• 30

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 2 to 3

• 5 to 2

• 3 to 5

Solve for n

12/6 = 4/n

• n=4

• n=2

• n=3

• n=6

If Mike has a ratio of 2 apples to 3 bananas, how many apples would you expect him to have if he has 15 bananas?

• 7

• 9

• 10

• 11