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panzie2
A neighborhood has provided trash cans to residents to dispose of their waste. All trash cans have a diameter of 1 meter and a height of 0.75 meters. What is the minimum number of trash cans required to dispose of 10 cubic meters of waste?
First, you have to find the area of each garbage can- v\[v=\pi rh ^{2} \] and our radius is half of our diameter. Substituting our values, we get (Pi)(.75)((.5)^2) for an answer of 0.58904862254 cubic meters, but don't round till the very end. To find how much they need, we divide the amount we want to dispose- 10 cubic meters by the amount one garbage can will hold- 10/0.5890486224 for an answer of 16.9765272634 we can't have 16.9765272634 trash cans, so we round to 17. We will need a minimum of 17 trashcans.