Question

A builder purchases 600 bricks for a new residential construction. The dimensions of each brick are 5.1 cm by 10.2 cm by 20.3 cm. The density of the brick is 1840 kg m3 . What is the weight, in kg to the hundredths, of 600 bricks?

Answer 1

1165.83 kg

Step-by-step explanation:

600×(5.1 cm × 10.2 cm × 20.3 cm) = 633,603.6 cm3

633,603.6 cm3 × 1 m3/10^6 cm3 × 1840 kg/m3= 1165.83

Answer 2

1165.83 kg

Step-by-step explanation:

The total mass is the product of volume of one brick, the number of bricks, and the density. For this problem, it is convenient to use dimensions in meters.

`(0.051\,m)(0.102\,m)(0.203\,m)(600)(1840\,kg)/(m^3)=(0.6336036\,m^3)(1840\,kg)/(m^3)\\\\=1165.83\,kg`