Other Forms of Inverse Proportion

If y is inversely proportional to x and y=2 when x=6, find y when x=15.

• 0.8

• 1.5

• 3

• 5

If y is inversely proportional to x and y=2 when x=6, find x when y=20.

• 0.6

• 2.5

• 9

• 12

If x is inversely proportional to y and x=10 when y=4, find the value of x when y=0.4.

• 100

• 75

• 50

• 25

If y is inversely proportional to x and y=15 when x=8, find the value of y when x=6.

• 20

• 30

• 10

• 40

g is directly proportional to b

Given g=20 when b=4.

Find g when b=7

• 35

• 5

• 15

• 23

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

CCSS.7.RP.A.3

t is directly proportional to n².

Given t=144 when n=6.

Find the equation for t and n.

• t = 4n²

• t = 4n

• t = 24n

• t = 6n²

t is inversely proportional to v

t=2 when v=6

Find the equation for t and v

• t = ¹²/_v

• t = ¹/₃ v

• t = ³/_v

• t = 12v

If z is inversely proportional to ∛w and z=5 when w=8,

find the value of w when z=100.

• 1

• 0.1

• 0.01

• 0.001

At Sec 2 camp, there is sufficient food for 48 students to last 6 days. If 12 students are absent from the camp, how many more days can the food last?

• 2

• 4

• 6

• 8

48 men were deployed to construct a bridge in 30 days.

How many days does it take for 8 men to construct the same bridge?

• 5

• 10

• 180

• 200