Question 359963
If X units of a product cost c dollars to manufacture and earn revenue of R dollars the value of X where the expressions for C and R are equal is called the break-even quantity the number of units that produce zero profit. Find the break - even quantity when C=13x+90000 and R=18X.

How many units must be produced and sold in order to break even?
revenue must be equal to sales
18x=13x+90000
18x-13x=90000
5x=90000
/5
x=18000 units have to be produced to breakeven
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