Question

27. Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 12 feet by 12 feet by 9 inches for a patio if the concrete costs $54.00 per cubic yard? (1 point)
$1,944.00
$972.00
$552.00
$216.00
28. Two square pyramids have the same volume. For the first pyramid, the side length of the base is 14 in., and the height is 24 in. The second pyramid has a height of 96 in. What is the side length of the base of the second pyramid? (1 point)
48 in.
24 in.
12 in.
7 in.

Answer 1

12*12*(9/12) = 108 ft^3
there are 3*3*3 = 27 ft^3/yd^3
108/27 = 4 cubic yards
4*54 = $216

Answer 2

for anything with a pointed top and straight sides the volume =
area of base * height *(1/3)
so here the side^2*h is the same for each
14^2*24 = s^2*96
or
14^2/s^2 = 4
14/s = 2
s = 7

Answer 3

Damon thank you so much god bless you you just saved my life ❤❤❤

Answer 4

You are welcome.