The variable z is inversely proportional to x. when x is 16, z has the value 0.875. what is the value of z when x=21

z is inversely proportion to x

⇒ z = k/x where k is a constant.

Find k:

Whe x = 16, z = 0.875

16 = k/0.875

k = 16 x 0.875

k = 14

Therefore z = 14/x

When x = 21, find z:

z = 14/21

z = 2/3

z = 2/3 or 0.67 (nearest hundredth)

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90