Friday

December 19, 2014

December 19, 2014

Posted by **Lucia** on Tuesday, July 19, 2011 at 5:04pm.

- algebra -
**Henry**, Tuesday, July 19, 2011 at 8:23pmEq1: L*W = 425Ft^2.

Eq2: 2L + 2W = 84Ft.

L + W = 42.

L e 42-W,

In Eq1, substitute 42-W for L:

(42-W)W = 425,

42W - W^2 - 425 = 0,

W^2 -42W + 425 = o,

(W-25)(W-17) = 0,

W-25 = 0,

W = 25.

W-17 = 0,

W = 17.

In Eq1 substitute 17 for W:

L*17 = 425,

L = 25 Ft., W = 17.

When L = 17, W = 25.

**Answer this Question**

**Related Questions**

basic geometric - 10. a rectangle has width the same as a side of a square whose...

math - The length, l, of a rectangle is 2 feet less than three times the width, ...

Math - The perimeter of a rectangle is 52 feet. The length is 2 feet shorter ...

Algebra Homework, HELP! - 1) A rectangle has an area of 297 square inches and a...

Math - The perimeter of a rectangle is 34 feet and the area measures 60 square ...

math - The length of a rectangle is 10 feet more than twice its width. The ...

algebra - What is the width of a rectangle with a perimeter of 70 feet if its ...

algebra - The length of a rectangle is 3 feet less than twice the width of the ...

Algebra - The length of a rectangle is 3 feet less than twice the width of the ...

Geometry - The perimeter of a rectangle is 76 feet. If the width is doubled and ...