Calculate the depth

Question

After reconsidering their budget, ICC has calculated that they only have $7770 to spend on their slab of concrete. ICC must consider the depth of their slab. Given that concrete is $185 per cubic metre, calculate the depth that ICC can build their 12m by 10m slab of concrete.

Answer 1

Use the formula for calculating volume...V=LxWxH. You know length and width, you are trying to determine height. Volume x $185 = total cost, and your cost can't go over 7770. The final formula should look like (12)(10)H=7770/185, then solve for H.