does anyone know how to do this function problem?

Question

I'm not really sure how to do this type of function problem. Does anyone know how?

If 4((z/8)+(z/2))
is simplified as (4z/A), then what is the value of A?

Answer 1

Set them equal:



4((z/8)+(z/2)) = 4z/A



z/8 + z/2 = z/A



A = z/(z/8 + z/2)

A = 8/5.

Answer 2

4((z/8) + (z/2))

= 4((z/8) + (4z/8))

= 4((z+4z)/8)

=4(5z/8)

=4(z/1.6)

=4z/1.6



Thus A=1.6

Answer 3

that type of math is pointless...lol



are you really gonna use that in everyday life?