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George is putting trim around his rectangular deck, including the gate. He will need 42 feet of trim to do the entire deck. If the deck is 12 feet long, how wide is the deck?

George is putting trim around his rectangular deck, including the gate. He will need 42 feet of trim to do the entire deck. If the deck is 12 feet long, how wide is the deck?
asked 186k views
5 votes
George is putting trim around his rectangular deck, including the gate. He will need 42 feet of trim to do the entire deck. If the deck is 12 feet long, how wide is the deck?

asked
User Jfrej
by
7.9k points

1 Answer

6 votes
Perimeter = 2L + 2W
42 = 2(12) + 2W
42 = 24 + 2W
-24 -24
18 = 2W
/2 /2
9 = W
The answer is 9 feet wide
answered
User DJ Capelis
by
7.5k points
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