Ratios Cross Multiply to Find X

To determine if a set of ratios are proportional, check their _____.

• Numerators

• Denominators

• Cross Products

• Cross Quotients

Tags

CCSS.7.RP.A.2A

Are these ratios proportional?

• Yes, the cross products are equal

• No, the cross products are not equal

• You can't tell.

Tags

CCSS.7.RP.A.2A

• x = 1/24
• x = 29
• x = 28
• x = 3/2

Tags

CCSS.HSA.REI.A.2

Select ALL statements that support these two ratios being proportional.

• Both cross-products are 400.

• The cross-products are 160 and 1000.

• The cross-products are 250 and 640.

• The simplified ratios are 5/8 and 25/40.

• The simplified ratios are both 5/8.

Tags

CCSS.7.RP.A.2A

• 10

• 5

• 20

• 15

Tags

CCSS.7.RP.A.2C

Which equation results in cross multiplying the the given proportional relationship?

Tags

CCSS.7.RP.A.2C

• 12

• 6

• 3

• 9

Tags

CCSS.7.RP.A.2C

Solve for the following proportion using cross multiplication

• x=0

• x=1

• x=10

• x=11

Tags

CCSS.7.RP.A.2C

Solve the proportion:

• 15

• 5

• 10

• 12

Tags

CCSS.7.RP.A.2B

Identify the following mathematical process

• Cross Canceling

• Proportion

• Complex Fractions

• Division

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1