Posted by **lisa** on Monday, July 8, 2013 at 11:43am.

The length of a rectangle is 4 m less than the diagonal and the width is 7 m less than the diagonal. If the area is 76 m2, how long is the diagonal? Round your answer to the nearest tenth.

- algebra1 HELP PLEASE -
**Steve**, Monday, July 8, 2013 at 11:56am
If the sides are x and y, and the diagonal is d,

x = d-7

y = d-4

so,

d = x+7 = y+4

That is, y = x+3

xy = 76, so

x(x+3) = 76

x = 7.35

So, the rectangle is 7.35 x 10.35

area = 76

diagonal is 12.69

## Answer This Question

## Related Questions

- Algebra - The length of a rectangle is 3 m less than the diagonal and the width ...
- math algebra 1 - The length of a rectangle is 2 m less than the diagonal and the...
- Math. fast please! - The length of a rectangle is 3 cm and the width is 2 cm. ...
- alg 150 help - the width of a rectangle is 9 less than twice the length. if the ...
- math - The width of a rectangle is 8 less than twice its length. If the area of ...
- Precalculus - The width of a rectangle is 8 less than twice its length. If the ...
- Math!Please Help.! - Hi.-It's Margie and I have a Math Lab to do but I don't get...
- Geometry - The length of a rectangle is 1cm longer than its width. If the ...
- Maths - The area of a rectangle of width ycm is 140cm^2. If the width is reduced...
- math - I have to find the area of a kite. I am only given part of the longest ...

More Related Questions