Answer:
45 bricks
Step-by-step explanation:
First we need to find the volume of one brick. The bricks are rectangular prisms. The volume formula for rectangular prisms is:
V=l*w*h
The bricks are 13 inches long, 5 inches wide and 4 inches high.
l=13 inches
w=5 inches
h=4 inches
V= 13 inches * 5 inches * 4 inches
V=65 inches^2 * 4 inches
V=260 inches ^3
Each brick has a volume of 260 inches^3. We know they used a total of 11,700 inches^3 of concrete. The question asks us to find how many bricks they made. We must divide the volume of concrete used by the volume of one brick.
concrete volume / one brick volume
concrete volume= 11,700 in^3
one brick volume= 260 in^3
11,700 in^3 / 260 in^3
11,700/260
45
They made 45 bricks.
