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77julia77 [94]
4 years ago
10

the formula for the perimeter of a rectangle is P=2l, + 2w, where l is the length and w is the width. A rectangle has a perimete

r of 24 inches. Find it's dimensions if it's length is 3 inches greater than it's width.
Mathematics
1 answer:
laila [671]4 years ago
7 0
P = 24 inches
w = x
l = 3 + x

P = 2l + 2w
24 = 2(3+x) + 2(x)
24 = 6 + 2x + 2x
24 = 6 + 4x
24 - 6 = 4x
18 = 4x
18/4 = x
4.5 = x
x = 4.5

Therefore, w = 4.5 inches and l =  7.5 inches
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Wpisz odpowiednie liczby: 1 cm2=...........mm2 9 cm2=...........mm2 5,2 cm2=............mm2 1 dm2 =...........cm2 17dm2=........
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Answer:

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8.5 km^{2} = 8.5×1000000 m^{2} = 8500000 m^{2}

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