Proportions Cross Products

Which ratio is proportional to 18/27?

• 1/9

• 12/18

• 21/30

• 90/220

Tags

CCSS.7.RP.A.2A

Determine whether the ratios form a proportion:

• Proportional

• Not Proportional

Tags

CCSS.7.RP.A.2A

Are x and y proportional?

• Yes

• No

Tags

CCSS.7.RP.A.2A

Do these ratios form a proportion?

If YES please also select the cross product.

• Yes, their cross products are equal.

• NO, their cross products are not equal.

• 45

• 25

Tags

CCSS.7.RP.A.2A

Are x and y proportional?

• Yes.

• No.

Tags

CCSS.7.RP.A.2A

Select all ratios proportional to 10:35

• 4:14

• 5/30

• 1:3

• 2/7

• 100 to 350

Tags

CCSS.7.RP.A.2A

Do 35:16 and 5:2 form a proportion?

• Yes, the cross products are both 70.

• Yes, the cross products are both 80.

• No the cross products are different.

Tags

CCSS.7.RP.A.2A

Tags

CCSS.6.RP.A.3A

The missing ratios in the ratio table are

Tags

CCSS.6.RP.A.3A

Find the value of x so that the ratios are equivalent.



Tags

CCSS.6.RP.A.3A