Question

Each dimension of a rectangular prism is increased by 80%. What percent of the original volume is the volume of the new prism?


a583.2%
b51.2%
c64%
d324%

Answer 1

Let's say the dimensions of the original prism are L, W, and H. How do you express the new dimensions?

Answer 2

I am not sure

Answer 3

All i got was a b c d

Answer 4

what are you thinking?

Answer 5

They're 1.8L, 1.8W, and 1.8H.
The volume of the original prism is V=LWH and the volume of the new one is (1.8L)(1.8W)(1.8H)=5.832LWH=5.832V. Now just do the subtraction 5.832-1 then multiply this by 100.

Answer 6

so do 5.832-1x100?

Answer 7

I got -94.168. Thats not right

Answer 8

No, no that. (5.832-1)x100.

Answer 9

So what is it a b c or d?

Answer 10

It's A.

Answer 11

okay cool i got it correct thanks bro

Answer 12

No prob.

Answer 13

Hey if you dont mind could you have a look at my other question.