Proportions/Solving for a Variable

Use the formula d=rt to solve. If a car travels 120 miles in 2 hours, what is the rate of the car?

• 30 miles per hour

• 90 miles per hour

• 45 miles per hour

• 60 miles per hour

Tags

CCSS.6.EE.B.7

Use the formula d=rt to solve. If a cyclist travels 30 miles at a speed of 10 miles per hour, how long did it take?

• 3 hours

• 15 hours

• 5 hours

• 2 hours

Tags

CCSS.6.EE.B.7

Use the formula d=rt to solve. If a train travels at a speed of 60 miles per hour for 3 hours, how far did it go?

• 120 miles

• 200 miles

• 180 miles

• 90 miles

Tags

CCSS.6.EE.B.7

SUse the formula d=rt to solve. If a runner covers a distance of 5 kilometers at a speed of 10 kilometers per hour, how long did it take?

• 2 hours

• 3 hours

• 0.5 hours

• 4 hours

Tags

CCSS.6.EE.B.7

Use the formula F=1.8C+32 to solve. Convert 32 degrees Fahrenheit to Celsius.

• 212

• 0

• 100

• 50

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Use the formula F=1.8C+32 to solve. Convert 20 degrees Celsius to Fahrenheit.

• 50

• 32

• 68

• 75

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Use the formula P=2L+2W to solve. If the perimeter of a rectangle is 30 cm and the width is 5 cm, what is the length?

• 20 cm

• 25 cm

• 10 cm

• 15 cm

Tags

CCSS.7.EE.B.4A

Use the formula P=2L+2W to solve. If the perimeter of a rectangle is 40 meters and the length is 15 meters, what is the width?

• 10

• 20

• 25

• 5

Tags

CCSS.7.EE.B.4A

Use the formula A=LW or A=bh to solve. If the area of a rectangle is 24 square units and the length is 6 units, what is the width?

• 8

• 10

• 4

• 2

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Use the formula A=LW or A=bh to solve. If the area of a rectangle is 45 square meters and the width is 5 meters, what is the length?

• 7

• 9

• 25

• 12

Tags

CCSS.6.EE.B.7