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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