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A new sidewalk will be 6 feet wide, 100 feet long, and filled in a debt of 9 inches with concrete. How many cubic yards of concrete are needed?
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A new sidewalk will be 6 feet wide, 100 feet long, and filled in a debt of 9 inches with concrete. How many cubic yards of concrete are needed?

User Disinfor
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Answer: 16.67 yd^3 cubic yards
User Jette
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7.8k points
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21,600 yards I think, 6ftx100ft=600ft x 12 to get to inches, 7,200x9 gives us 64800 then / by 3 to get into yards which is 21600, have a great day
User Luis Montoya
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