Question

the variable z is directly proportional to x. when x is 15, Z has the value 0.2. What is the value of Z when x = 23

Answer 1

The value of Z = 0.3066... Or 0.31.

Explanation:

The formula of direct proportional is a=kb (where k is constant). Given that a=z=0.2 and b=x=15, equation is 0.2=15k,

k=0.2/15

k=0.0133333333333

If x is 23 then what is z?

z=0.0133333333333(23)

z=0.3066666 or 0.31