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Shalnov [3]
3 years ago
9

The perimeter of a rectangle room is 250 feet the length is 35 feet less than three times the width what is the length of the ro

om
Mathematics
1 answer:
raketka [301]3 years ago
6 0
Perimeter of rectangle:
P = 2(L + W)
P = 250 (given)
L = 3W - 35 (given)

250 = 2(3W -35 + W) ↔ 125 = 4W - 35

4W = 125 +35 =160 And W = 40 ft
And L = 3x40 - 35 = 85 ft


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Let us denote the number of tiles by T.

In the first store, if Darin bought T tiles, he would need to spend:
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In the second store, if Darin bought T tiles, he would need to spend:
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For the cost to be the same at both stores, it means (measured in $)
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