SOLUTION: Calculate the dimensions of a rectangle, knowing that the perimeter is 74m and that one of the dimensions is 3 times greater than the other.

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Question 679052: Calculate the dimensions of a rectangle, knowing that the perimeter is 74m and that one of the dimensions is 3 times greater than the other.
Found 2 solutions by ReadingBoosters, pmatei:
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
p = 74
w = 3l
...
p = 2l+2w = 2l+2(3l)
74 = 2l + 6l
74 = 8l
highlight_green%28l+=+74%2F8+=+9.25m%29
...
highlight_green%28w+=+3%289.25%29+=+27.75m%29
.....................
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Answer by pmatei(79) About Me  (Show Source):
You can put this solution on YOUR website!
Length = 3x
Width = x
Perimeter = 2(Length + Width)
74+=+2%283x%2Bx%29
74+=+8x
x+=+9.25
Area = Length * Width
A+=+%283%2A9.25%29%2A9.25+=+256.6875 square meters