Question

A sphere is enlarged so that its new volume is 8 times greater than its original. If the original volume was 36π, by how much did the original radius increase?

Select one:

A. 1

B. 2

C. 3

D. 4

Answer 1

let the original volume be V_o
so we know that

36pi = 8V_o

to get the value of V_o divide both sides by 8 so how many will get for V_o ?

@supie

Answer 2

@Laylalyssa any idea here ? this is easy - after i ve wrote the way how solve

Answer 3

ok