Solve Proportions with Cross

Solve the proportion.

• p=31.3

• p=308

• p=924

• p=532

Tags

CCSS.7.RP.A.3

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk

• 1.75 cups milk

• 2 cups flour

• 2.25 cups milk

Tags

CCSS.7.RP.A.3

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Tags

CCSS.7.RP.A.2B

Solve the proportion:

• 3

• 4

• 9

• 6

Tags

CCSS.7.RP.A.2B

The flag pole is 6 feet tall with a shadow of 10 feet. Using proportions, how tall is the pine tree?

• 10 ft

• 12 ft

• 20 ft

• 18 ft

Tags

CCSS.HSG.SRT.B.5

Solve the proportion:

• 15

• 5

• 10

• 12

Tags

CCSS.7.RP.A.2B

What is the correct way to write the cross multiplication for this proportion

• 15=25x

• 125=5x

• 75=5x

• 5=3x

Cross Multiply/Cross Products

• 15

• 420

• 28

• 16

Use the table to write a proportion.

• 2.08/16=d/8

• 8/d=16/2.08

• 2.08/16=8/d

• 2.08/8=d/16

Write a proportion to find how many points a student needs to score on a test in order to get the given percent:
The test is worth 12 points.
The test score is 75%.

• p/12=100/75

• p/100=12/75

• p/12=75/100

• p/75=12/100