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OpenStudy (anonymous):
HELP!: The dimensions of a rectangle are 10 feet by 15 feet respectively. If each of the dimensions is increased by the same amount, the perimeter of the new rectangle is 28 feet more than the perimeter of the old rectangle. Find the amount increase.
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OpenStudy (radar):
Each side was increased by the same amount let that increase be x. The perimeter is four sides or 4x and the increase is 28. 4x=28 solve for x.
OpenStudy (anonymous):
x = 7 Is that the final answer?
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