L10-1 Constant of proportionality

What is the constant of proportionality for a ratio of 5 to 8?

• 0.625

• 1.6

• 40

• 3

Tags

CCSS.7.RP.A.2B

Which of the following is an equation for the constant of proportionality (k)?

• $k=\frac{y}{x}$

• k = yx

• k = y + x

• k = y-x

Tags

CCSS.7.RP.A.2B

Which equation represents the proportional relationship 4:18?

• y=0.222x

• y=4x

• y=18x

• y=4.5x

Tags

CCSS.7.RP.A.2C

The ratio of width to length of a rectangle is 5 : 30 in inches. What is the constant of proportionality from the width to the length?

• 6

• 5

• 0.167

• 30

Tags

CCSS.7.RP.A.2B

Determine the constant of proportionality for a ratio of 5 to 13

• 5

• 0.38

• 2.6

• 13

Tags

CCSS.7.RP.A.2B

Determine the constant of proportionality for the point (6, 9) on a graph.

• 1.5

• 0.67

• 6

• 9

Tags

CCSS.7.RP.A.2B

Determine the constant of proportionality of 4 yellow marbles to 12 green marbles.

• 3

• 0.33

• 4

• 12

Tags

CCSS.7.RP.A.2B

If y = 3x, what is the constant of proportionality?

• k

• y

• x

• 3

Tags

CCSS.7.RP.A.2B

Find the constant of proportionality from 10 = 6k

• 2

• 1.67

• 4

• 0.6

Tags

CCSS.7.RP.A.2B

Find the constant of proportionality from $\frac{5}{7}$  

• 5

• 0.71

• 1.4

• 7

Tags

CCSS.7.RP.A.2B