What is the volume of a 75 cubic inches rectangular prism if scaled down by 1/10? I will give medals and fan!

Question

horsegal244 · Answer

@brunomcv

horsegal244 · Answer

@jim_thompson5910

horsegal244 · Answer

@SolomonZelman

jim_thompson5910 · Answer

Each dimension is scaled by 1/10?

horsegal244 · Answer

Yea

horsegal244 · Answer

@jim_thompson5910

amistre64 · Answer

how do we find the volume to start with?

horsegal244 · Answer

Height x width x length

amistre64 · Answer

good, so

75 = lwh

now what happens when we divide each linear measure by 10?

V = l/10 * w/10 * h/10

horsegal244 · Answer

I don't Know
Im sorry

amistre64 · Answer

$$V=\frac{l}{10}\frac{w}{10}\frac{h}{10}=\frac{lwh}{10^3}$$

but we are told what lwh equals already, its 75

so what is the value of the new Volume?

anonymous · Answer

each of three dimensions gets scaled down by $1/10$, so the volume scales by $(1/10)^3=1/10^3=\dots$

amistre64 · Answer

if its scaled down by 1/10, doesnt that mean that we have 9/10 to deal with in the volume?

horsegal244 · Answer

L     7 1/2 over 10
w   4 over 10
h    2 1/2 over 10

amistre64 · Answer

the actual numbers for l,h, and w are irrelevant.

lwh = 75

if we scale down by 1/10 ... thats the trouble spot to read thru.  it reads to me as:

(1 - 1/10) is our scale factor.

so instead of altering it by (.10)^3  we would be altering it by (.90)^3

the question is, how correct is my thinking?

horsegal244 · Answer

I don't really know can u please just solve it for me....

amistre64 · Answer

no, i cant just solve it for you.

horsegal244 · Answer

Please I'm begging you i am horrid at math its not funny

amistre64 · Answer

asking or begging me for a direct answer would simply force me to suspend your account.

horsegal244 · Answer

Well thanks