3 years ago

Perimeter of a rectangle HELP!

Mathematics

1 answer:

alexdok [17]3 years ago

3 0

All I can say is that your equation is wrong

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A rectangular board has a perimeter of 28 feet. if the length is twice the width minus 1 foot, then what is the length of the bo

Westkost [7]

P = 2(L + W)
P = 28
L = 2W - 1

28 = 2(2W - 1 + W)
28 = 2(3W - 1)
28 = 6W - 2
28 + 2 = 6W
30 = 6W
30/6 = W
5 = W ....width is 5 ft

L = 2W - 1
L = 2(5) - 1
L = 10 - 1
L = 9 <=== length is 9 ft

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3 years ago

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Phantasy [73]

Answer:

-7

Step-by-step explanation:

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