Question

The value of y is directly proportional to the value of z. When z = 6.25, the value of y is 25.

What is the value of y when z = 12?

Answer 1

48

Step-by-step explanation:

y directly prop. to z

y=25

z=6.25

y=kz(k=prop. constant)

25=6.25k

k=4

now,

when z=12

then,

y=4z

y=4×12

y=48