Question

The value of y varies jointly with the values of x and z. When x=4 and z=9, the value of y is 360.

What is the value of y when x=5 and z=12?

Group of answer choices

170

10

600

450

Answer 1

C

Explanation:

y = k * z , where k is any constant

x=4, z=9 , y=360

360 = k (4)(9)

360 = 36 k

k = 360/36

k = 10

y = 10 * z

when x=5 and z = 12

y = 10 (5)(12)

y = 600