A company makes wax candles shaped like rectangular prisms. Each candle is 5cm long, 4cm wide, and 15cm tall. If the company used 5110cm3 of wax, how many candles did they make?

To start you would want to find how much wax it takes to make one candle. So 5x4x15 will equal the cm^3 needed to make each candle. That's 300cm^3 of wax for each candle. If they used 5110cm^3, then just divide 5110 by 300. That will give you 17.03, but I'm assuming they want you to to solve to a whole number, so they could get 17 candles out of 5100 cm^3 of wax, and have 10cm^3 remaining.

5x4x15=300cm3 per candle

5110/300=17.03

so 17 candles is your answer