A driveway 30 feet long and 18 feet wide is to be paved with blacktop 4 inches thick. How much will the blacktop cost if it is sold at the price of $175 per cubic yard? Show all work to receive credit.
2007-10-11 06:26:33 · 5 answers · asked by Cakes L 1 in Science & Mathematics ➔ Mathematics
The paving is 540 square feet, a third of a foot thick, so 180 cubic feet. Divide by 27 to get cubic yards, and multiply by $175.
2007-10-11 06:37:22 · answer #1 · answered by Anonymous · 1⤊ 0⤋
V = 30 x 18 x 1/3 ft ³
V = 180 ft ³
V = 180 / 27 yd ³
V = 60 / 9 yd ³
V = 6 6/9 yd ³
V = 6 2/3 yd ³
Cost = 6 2/3 x $175
Cost = 20/3 x $175
Cost = $1167 (to nearest dollar)
2007-10-11 07:57:59 · answer #2 · answered by Como 7 · 2⤊ 0⤋
10 yards long * 6 yards wide * 1/9 yard thick * $175 =
60 square yards * 1/9 yard thick * $175 =
6 2/3 cubic yards * $175 = $1166.666
2007-10-11 06:50:04 · answer #3 · answered by Mark Antony 3 · 0⤊ 1⤋
just get the total volume by multiplying all the dimensions together. convert the inches into feet first. (4 inches = 1/3 ft)
30ft *18ft *(1/3)ft = 180ft cubed
now convert that into yards. there are 3 ft in a yard
180 ft cubed/3 ft per yard= 60 yards cubed
$175(60) = $10500
2007-10-11 06:42:35 · answer #4 · answered by Nilly 3 · 0⤊ 1⤋
L*W*H=180ft cubed
divide by three to get yards cubed...
60 yrds cubed
60yrds^3*$175.=$10,500.00 total
**3ft in a yard not 36 ft
2007-10-11 06:48:10 · answer #5 · answered by britbutt 3 · 0⤊ 1⤋