SOLUTION: In 2 minutes, a conveyor belt can move 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt can move the same quantity of cans the same dista

Question 377443: In 2 minutes, a conveyor belt can move 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt can move the same quantity of cans the same distance in 6 minutes. If both belts are used, find how long it takes to move the cans to the storage area.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Rate of bigger conveyor belt = 150 lbs/min
Rate of smaller conveyor belt = 50 lbs/min.
Let t = amount to finish the job with both conveyor belts working.
Then t(150 + 50) = 300, or 200t = 300, or t = 1.5 hrs.
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