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Gekata [30.6K]
3 years ago
12

If the perimeter of a rectangle is 38 inches how tall is it

Mathematics
1 answer:
Leni [432]3 years ago
7 0
P = 2l + 2w 
<span>38 = 2l + 2w </span>
<span>l = w + 3 , (the length is 3 inches more than the width) </span>

<span>then substitute w + 3 to l in 38 = 2l + 2w </span>


<span>38 = 2(w + 3) + 2w </span>

<span>38 = 2w + 6 + 2w </span>

<span>38 = 4w + 6, then take away 6 from both sides </span>

<span>32 = 4w, then divide both sides by 4 </span>

<span>w = 8 inches (width)</span>
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