Question

PLEASE HELP ME!!
Which of the following is not true based on the fact that 2/5x divided by 3x^2 = 8/15x^3?

A. 3x^2/4 * 8/15x^3 = 2/5x
B. 8/15x^3 * 3x^2/4 = 2/5x
C. 2/5x divided by 8/15x^3 = 3x^2/4

Answer 1

so you have a/b=c
so cxb=a

Answer 2

Can you figure it out now?

Answer 3

Umm, no. Sorry, that didn't make any sense!

Answer 4

do you understand the equation a/b=c so cxb=a?

Answer 5

Basically to get a alone you have to multiply c by b

Answer 6

ok.

Answer 7

So now lets tage our variable pretend a=2/5x b=3x^2 and c=8/15x^3

Answer 8

so a/b=c
(2/5x)/(3x^2)=8/15x^3
a b c
so
now what is b times c?
(8/15x^3) times (3x^2)= a
and what is a? (2/5x)

Answer 9

So the answer is?

Answer 10

c.

Answer 11

Actually its B

Answer 12

ohhhh, ok, I get what you're saying! Thanks!!

Answer 13

No problem :)

Answer 14

Actually.. Wouldn't "B" be one of the correct answers?

Answer 15

Yes that is what I mean B is the answer to your multiple choice problem

Answer 16

the question is which of the following is NOT true... So you're saying B wouldn't work in this equation?

Answer 17

I am so sorry I missed that part you were right the first time then. The answer is c c is not possible

Answer 18

I totally didn't see the NOT part and just went on trying to explain how to understand the problem

Answer 19

haha, that's okay!! I thought I was going insane for a minute there!