Question 309163
250+.10x>500+.05x
.10x-.05x>500-250
.05x>250
x>250/.05
x>5,000 copies is the same cost for Co.A & B.
More than 5,000 copies Co. a will be more expensive.
Proof:
Let copies be=5,001
250+.10*5,001>500+500+.05*5,001
250+500.1>500+25.005
750.01>750.005