Mastering Ratios and Proportions

A graph shows a line passing through points (2, 4) and (4, 8). What is the ratio of the change in y to the change in x?

• 1:1

• 2:1

• 1:2

• 4:2

Tags

CCSS.7.RP.A.2C

• 1

• 3

• 5

• 9

Tags

CCSS.7.RP.A.2C

A table shows the following ratio of apples to oranges: 2:3. If there are 10 apples, how many oranges are there?

• 5

• 15

• 20

• 30

A recipe requires a ratio of 3 cups of flour to 4 cups of sugar. If you have 12 cups of flour, how many cups of sugar do you need to maintain the ratio?

• 8

• 12

• 16

• 18

• 1:3

• 3:1

• 1:1

• 2:1

Tags

CCSS.7.RP.A.2D

• 2

• 4

• 8

• 16

Tags

CCSS.7.RP.A.2B

A table shows the ratio of boys to girls in a class as 3:2. If there are 18 boys, how many girls are there?

• 12

• 24

• 30

• 36

If a car travels 300 miles in 5 hours, what is the constant of proportionality representing miles per hour?

• 50

• 60

• 75

• 100

Tags

CCSS.7.RP.A.2B

A proportion problem states that if 6 notebooks cost $9, how much would 10 notebooks cost?

• $12

• $15

• $18

• $20

Tags

CCSS.6.RP.A.3B

A table shows the following proportions of ingredients in a mixture: 4 parts water to 1 part sugar. If you have 20 parts of water, how many parts of sugar do you need?

• 4

• 5

• 10

• 20