A metal worker wants to figure out the cost of making a rectangular iron bar. He knows that the required dimensions of the bar are 8.0 cm (width), 0.40 cm (height), and 310 cm (length).

If this kind of iron costs $0.015 per cm3, what is the cost of making the bar (to the nearest dollar)?

Question

A metal worker wants to figure out the cost of making a rectangular iron bar. He knows that the required dimensions of the bar are 8.0 cm (width), 0.40 cm (height), and 310 cm (length).

If this kind of iron costs $0.015 per cm3, what is the cost of making the bar (to the nearest dollar)?

Vocaloid · Answer

first calculate the volume (for a rectangular prism, the volume is width*height*length)

from there, you'll have your volume in cm^3. since the iron costs $0.015 per cm^3, multiply the volume by 0.015.