Perimeter of a retangle is 40 ft. The ratio is of the width to the lenght is 2:3. Find the lnegth and the width.
2007-01-29 02:28:22 · 7 answers · asked by Angel 1 in Science & Mathematics ➔ Mathematics
W = width, L = length
W/L = 2/3, W = (2L)/3
2W + 2L = 40
(4L)/3 + 2L = 40
Multiply both sides by 3:
4L + 6L = 120
10L = 120
L = 12
W = (2L)/3 = 24/3 = 8
2007-01-29 02:31:43 · answer #1 · answered by MamaMia © 7 · 0⤊ 0⤋
Let 2x = width
Then 3x = length
Perimeter = 2(2x+3x+)= 10 x
10 x = 40
x = 4
2x = 8 = width
3x = 12 = length
2007-01-29 10:33:13 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
2 l + 2 w = 40
l/w = 2/3
l = 2w/3
4w/3 +2w = 40
10w/3 = 40
w = 12
2 l + 24 = 40
2 l = 16
l = 8
2007-01-29 10:35:49 · answer #3 · answered by Jabberwock 5 · 0⤊ 0⤋
width is 8
length is 12
2007-01-29 11:23:37 · answer #4 · answered by Andrew 1 · 0⤊ 0⤋
(2x+3x)*2=40
10x=40
x=4
length = 12
width = 8
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2007-01-29 10:48:39 · answer #5 · answered by Arijit P 1 · 0⤊ 0⤋
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2007-01-29 10:39:55 · answer #6 · answered by Anonymous · 0⤊ 0⤋
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2007-01-29 10:35:41 · answer #7 · answered by Anonymous · 0⤊ 0⤋