MTH208 – Quiz 3

2009-09-20 · Cost of plan A for x hours is 10 + 9x. Cost of plan B for x hours is 70 + 4x. So plan B would be better of the two after x hours if it costs less than A, So, 70 + 4x < 10 + 9x. Or 60 < 5x. Or x > 12. So it would take 13 hours to be rented to make plan B the best plan. ................
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