SOLUTION: Regrind, Inc. regrinds used typewriter platens. The cost to buy back each used platen is $2.70. The fixed cost to run the grinding machine is $228 per day. If the company sells the

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Question 178380: Regrind, Inc. regrinds used typewriter platens. The cost to buy back each used platen is $2.70. The fixed cost to run the grinding machine is $228 per day. If the company sells the reground platens for $5.70, how many must be reground daily to break even?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
let C be the cost of Platens and R be the Revenue of Platens. Let x be the number of Platens bought and sold
:
C=2.7x+228
R=5.7x
:
we are looking for break even so set R=C
:
2.7x+228=5.7x
:
3x=228
:
highlight%28x=76%29Platens it takes to break even