Question

HELP PLS ASAP I WILL GIVE 50 points and brainliest PLS

The variable z varies jointly with x and y. Also, z = -75 when x = 3 and y = -5.

What equation describes this variation?
z = kxy
What is the constant of variation?
k =

Answer 1

Answer:

Maybe is 2y

Step-by-step explanation:

Answer 2

Step-by-step explanation:

z = kxy, where k is a real constant.

We have z = -75, x = 3, y = -5.

(-75) = k(3)(-5)

-75 = -15k

k = 5.