Question

company makes concrete bricks shaped like rectangular prisms. each brick is 15 inches long, 10 inches wide, and 5 inches tall. if they used 15,000 in³ of concrete, how many bricks did they make? bricks

Explanation:

Step1: Calculate the volume of one brick

The volume \(V\) of a rectangular prism is given by the formula \(V = l\times w\times h\), where \(l = 15\) inches, \(w = 10\) inches and \(h = 5\) inches.

$$
LATEXBLOCK0
$$

Step2: Calculate the number of bricks

Let \(n\) be the number of bricks. We know that the total volume of concrete used is \(15000\space in^{3}\). Using the formula \(n=\frac{\text{Total Volume}}{\text{Volume of one brick}}\)

$$ n=\frac{15000}{750}=20 $$

Answer:

20