SOLUTION: A phone company offers two monthly charge plans. In Plan A, there is no monthly fee, but the customer pays 8 cents per minute of use. In Plan B, the customer pays a monthly fee of
Question 1189610: A phone company offers two monthly charge plans. In Plan A, there is no monthly fee, but the customer pays 8 cents per minute of use. In Plan B, the customer pays a monthly fee of $3.60 and then an additional 7 cents per minute of use.
For what amounts of monthly phone use will Plan A cost at least as much as Plan B?
Use m for the number of minutes of phone use in a month, and solve your inequality for m. Answer by ikleyn(52832) (Show Source): You can put this solution on YOUR website! .
Plan A Plan B
0.08m >= 3.60 + 0.07m dollars
0.08m - 0.07m >= 3.60
0.01m >= 3.60
m >= = 3.60*100 = 360 minutes. ANSWER