Question

Help math
How am i suppose to do this ?

Answer 1

16/5

Explanation:

The direct variation equation (where k is the constant variation):

z = kw

First, we must solve for k:

k = w/z

Plug in -5 and 2:

k = 2/-5 = -2/5

Now plug k into the formula with 8 to solve for z:

z = -2/5 x 8 = 16/5

Answer 2

z = -20

Set up proportions with your given values, cross-multiply, and solve for the missing value.

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