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DanielleElmas [232]
2 years ago
11

a rectangle plot measure 20ft. by 30ft. A 3-ft.-wide sidewalk surrounds it.Find the area of the sidewalk.

Mathematics
1 answer:
goldenfox [79]2 years ago
3 0
Area of a rectangle = length (l) * width (w)
A = 30ft * 20ft
A = 600 sq ft

Now the width of a sidewalk that surroundeds it = 3 ft
so now the area of the rectangle with sidewalk= 30+3ft * 20+3ft
A = (33*23) ft
A = 759 sg ft

Area of the sidewalk = 759 - 600
A = 159 sq ft
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Step-by-step explanation:

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Answer:

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Answer:

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Step-by-step explanation:

Let the larger number be represented by x

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from the question, the next equations can be gotten :

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Substitute for x in equation 1

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Collect like terms

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Step-by-step explanation:

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