Set them equal or R(x) - C(x) = 0
2x + 10 = -5x^2 + 21x
5x^2 - 19x + 10 = 0
x = .6311 thousand or appr 631
or
x = 3.169 thousand or appr 3169
check:
if x = .6311 , R(.6311) - C(.6311) = .00053.. , not bad
if x = 3.169 , ...... = .001805
both answers are valid
Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) = -5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts.
a) How many pairs of shorts must the company sell in order to break even
1 answer
2 answers