SOLUTION: A rectangular solid has a base with length 5 cm and width 8 cm. If the volume of the solid is 160 cm3, find the height of the solid. [Hint: The volume of a rectangular solid is g

Algebra ->  Algebra  -> Length-and-distance -> SOLUTION: A rectangular solid has a base with length 5 cm and width 8 cm. If the volume of the solid is 160 cm3, find the height of the solid. [Hint: The volume of a rectangular solid is g      Log On

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Question 23191: A rectangular solid has a base with length 5 cm and width 8 cm. If the volume of the solid is 160 cm3, find the height of the solid. [Hint: The volume of a rectangular solid is given by V = LWH.]
I am confused about how to do geometry. Please help me.
Thanks
Sherri
Found 2 solutions by rapaljer, stanbon:
Answer by rapaljer(4551) About Me  (Show Source):
You can put this solution on YOUR website!
This is more of an ALGEBRA problem than GEOMETRY!! You have a formula with four unknowns in it: V, L, W, and H. You are given the values of three of those unknowns: L= 5 cm, W= 8 cm, and V= 160 cm^3, so just substitute what you know into the equation, and solve for the last unknown, which is the height H:

V= LWH
160 = 5*8*H
160 = 40H

Divide by 40:
160%2F40=%2840H%29%2F40
H= 4 cm.

Now, was your problem here geometry? Or was it algebra!!

R^2 at SCC

Answer by stanbon(48558) About Me  (Show Source):
You can put this solution on YOUR website!
You are given L, W, and V; plug them in to find H.
160 = 5(8)H
160=40H
H = 4 cm (height of the rectangular solid)
Cheers,
Stan H