Friday

July 25, 2014

July 25, 2014

Posted by **Jane** on Saturday, April 21, 2012 at 6:05pm.

Please show me in detail how to set this up and solve.

- math -
**Damon**, Saturday, April 21, 2012 at 7:18pmarea of sides = 2 L *6 + 2 W*6

= 12 L + 12 W

area of bottom = L W

total area = L W + 12 L + 12 W = 480-4*36

so

L W + 12 L + 12 W = 336

but L = W + 4

(W+4)W + 12(W+4) + 12 W - 336 = 0

W^2 + 28 W -288 = 0

(W -16)(W+18) = 0

W = 16

L = 16+4 = 20

**Related Questions**

math - Answer by factoring a quadratic equation. The length of an open-top box ...

Maths - Algebra - Boxes are made by cutting 8cm squares from the corners of ...

Math - Please help I have no Idea what to do here. A box with an open top is to ...

geometry - a closed box of uniform thickness is made of wood 1cm thick. Its ...

math - open top rectangular box made from 35 x 35 inch piece of sheet metal by ...

ALGEBRA - DAmon you equaled them to zero that is not rightt An open-topped box ...

Math - A box with an open top is to be made by cutting 5-inch squares from the ...

calculus - A box with a square base and an open top is to have a volume of 68in^...

Applied Calculus - If an open box is made from a tin sheet 7 in. square by ...

Math - An open box is to be made from a 10-ft by 14-ft rectangular piece of ...