SOLUTION: A coffee table is rectangular. If the length of its surface is one foot greater than twice its width and the surface are of the tabletop is 10 square feet, what are its length and

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Question 1194751: A coffee table is rectangular. If the length of its surface is one foot greater than twice its width
and the surface are of the tabletop is 10 square feet, what are its length and width?
Found 3 solutions by Alan3354, josgarithmetic, Edwin McCravy:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A coffee table is rectangular. If the length of its surface is one foot greater than twice its width
and the surface are of the tabletop is 10 square feet, what are its length and width?
----------------------
Try integers first:
1 by 10 Nope
2 by 5 Is it

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The description is very literal and it is of a rectangle. If you'd find it helpful, draw and label the parts and form the necessary equation or equations.

L&w
L=2w+1

wL=10
w%282w%2B1%29=10
maybe_try2w%282w%2B1%29=20
possibly4%284%2B1%29=20
-
2w corresponds_to 4;
highlight%28w=2%29

Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
It may be that your teacher wanted you to do it without using
ANY trial and error.  If so,





We know the width can't be negative, so we ignore
the negative answer.

That's the way to get the width as 2 without
using any trial and error.

Now substitute w=2 in length = 2w+1 to find the length.

Edwin