one side of a rectangle is 4 in shorter than three times the other side. find the sides if the perimeter of the rectangle is 48 in
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ANSWER: The other side is 20.
SOLUTION: Let the other side = a
Perimeter of rectangle = 2(length + breadth)
48 = 2(a + 4)
48 = 2a + 8
40 = 2a
40/2 = a
20 = a
a = 20
SOLUTION: Let the other side = a
Perimeter of rectangle = 2(length + breadth)
48 = 2(a + 4)
48 = 2a + 8
40 = 2a
40/2 = a
20 = a
a = 20
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