Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 18 feet by 18 feet by 6 inches for a patio if the concrete costs $42.00 per cubic yard?

$252.00
$756.00
$1,134.00
$6,804.00

Question

Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 18 feet by 18 feet by 6 inches for a patio if the concrete costs $42.00 per cubic yard?

$252.00
$756.00
$1,134.00
$6,804.00

welshfella · Answer

How many cubic feet are there in a cubic yard

durply · Answer

Hi

welshfella · Answer

there are 3*3*3 sq ft in a sq yd

welshfella · Answer

volume of the slab = 18*18*0.5  cu ft

welshfella · Answer

I mean 3*3*3 = 27 cu ft  not sq ft

welshfella · Answer

now convert the volume of the slab to cu yds by dividing it by 27

welshfella · Answer

the cost will be 42 * this volume

welshfella · Answer

volume of the slab in cu yds =  18*18*0.5
                                                 --------
                                                      27

welshfella · Answer

grab your calculator and work that out
then multiply the result by 42  to find the required cost

anonymous · Answer

ok got it thnx!

welshfella · Answer

yw