SOLUTION: In 9 ​minutes, a conveyor belt moves 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt moves the same quantity of cans the same dist

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Question 1080135: In 9 ​minutes, a conveyor belt moves 300 pounds of recyclable aluminum from the delivery truck to a storage area. A smaller belt moves the same quantity of cans the same distance in 45 minutes. If both belts are​ used, find how long it takes to move the cans to the storage area.
Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
The rate for the large conveyor belt is:
pounds/min
The rate for the smaller belt is:

------------------------
Let = time in minutes for the 2 belts
used together to move pounds
Add their rates to get rate working together
-----------------------------------------

Multiply both sides by



-------------------
Both belts used together take 7 min 30 sec to
move 300 pounds of cans
-------------------------
check:




OK

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