lasmisch7loe lasmisch7loe

02-09-2016
Mathematics

contestada

Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 11 feet by 11 feet by 3 inches for a patio if the concrete costs $63.00 per cubic yard? A) $211.75. B) $70.58. C) $317.63. D) $1,905.75

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HomertheGenius HomertheGenius

11-09-2016

1 yard = 3 feet
11 feet = 11 : 3 = 0.36666 yards
3 inches = 0.249999 feet = 0.083333 yards
V = 0.36666 * 0.36666 * 0.083333 = 1.12032 yd³
1.12032 * $ 63.00 = $70.58
Answer: B ) $70.58

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