Proportions With Variables

Solving proportions with one variable: If 3/5 = x/15, what is the value of x?

• 9

• 5

• 12

• 7

Tags

CCSS.7.RP.A.2B

Solving proportions with one variable: Solve for x: 4/7 = x/14

• 10

• 6

• 8

• 2

Tags

CCSS.7.RP.A.2B

Solving proportions with one variable: If 2/3 = 8/x, find the value of x

• 10

• 4

• 6

• 12

Tags

CCSS.7.RP.A.2B

Solving proportions with one variable: Determine the value of x in the proportion 5/9 = x/15

• x = 15/5

• x = 9/5

• x = 3/25

• x = 25/3

Tags

CCSS.7.RP.A.2B

Solve for w

• 3.3

• 5.6

• 5.1

• 7.3

Tags

CCSS.7.EE.B.4A

How do you know whether two quantities x and y are proportional?

• Every sum x + y is the same for related pairs of x and y.

• Every x term is a multiple of the previous term.

• Every difference x – y is the same for related pairs of x and y.

Answer explanation

Proportional relationships are equivalent ratios.

Tags

CCSS.MATH.CONTENT.7.RP.A.2.a

Solve for a

• 8.5

• -3.1

• 8.9

• 14.6

Tags

CCSS.7.EE.B.4A

• 2
• 12.5

Tags

CCSS.7.RP.A.3

• x = 3
• x = -3
• x = 1
• x = -1

Tags

CCSS.7.EE.B.4A

Solve for b

• 3.33

• -3.33

• 13.33

• -13.33

Tags

CCSS.8.EE.C.7B