SOLUTION: The length of a rectangle of 4 cm less than triple it’s width. The perimeter of the rectangle is 124. What is the length and width of the rectangle
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Question 1183020: The length of a rectangle of 4 cm less than triple it’s width. The perimeter of the rectangle is 124. What is the length and width of the rectangle
Found 2 solutions by greenestamps, MathLover1:
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!
Let x be the width.
Then the length is 4 less than three times x, or 3x-4.
The perimeter, which is twice length plus width, is 124, so length plus width is 124/2 = 62.
Solve using basic algebra.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
given:
The length of a rectangle of cm less than triple it’s width,
....eq.1
if the perimeter of the rectangle is , we have
....substitute from eq.1
then
the length is cm and width is cm
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