Regrind, Inc. regrinds used typewriter platens. The cost per platen is $1.70. The fixed cost to run the grinding machine is $267 per day. If the company sells the reground platens for $4.70, how many must be reground daily to break even?

Question

Regrind, Inc. regrinds used typewriter platens.  The cost per platen is $1.70.  The fixed cost to run the grinding machine is $267 per day.  If the company sells the reground platens for $4.70, how many must be reground daily to break even?

Dr. Jane · Answer

Cost = Revenue to break even. 267 + 1.70 x = 4.70 x Solve for x.

Knights · Answer

4.7 -1.7 = 267 3x = 267 x = 89