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Math problem...?

The length of a rectangle is four times as long as its width. If the area is 100 m^2 what is the length of the rectangle?

2007-10-25 12:20:31 · 2 answers · asked by crocsroc 2 in Science & Mathematics ➔ Mathematics

2 answers

20m

2007-10-25 12:27:11 · answer #1 · answered by Alberd 4 · 0⤊ 0⤋

x = width
4x = length
A = 4x^2 = 100
x^2 =25
x = 5
4x = 20m = length

2007-10-25 19:25:42 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋

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