SOLUTION: Two sand hauling trucks one that holds 12 tons and one that holds 15 tons make a total of 20 trips to haul 273 tons of sand. How many trips does each truck make?
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Question 99988: Two sand hauling trucks one that holds 12 tons and one that holds 15 tons make a total of 20 trips to haul 273 tons of sand. How many trips does each truck make? Answer by checkley71(8403) (Show Source):
You can put this solution on YOUR website! 15X+12(20-X)=273
15X+240-12X=273
3X=273-240
3X=33
X=11 TRIPS FOR THE 15 TON TRUCK.
20-11=9 TRIPS FOR THE 12 TON TRUCK.
PROOF
15*11+12*9=273
165+108=273
273=273
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