Ask your own question, for FREE!
Mathematics 20 Online
OpenStudy (.whitedragon.):

The cost of a long-distance telephone call is given by the function C(m) = 0.15m + 0.75 where m is the length of the call in minutes. Determine how long a phone call can be made for $9.75. 120 minutes 60 minutes 65 minutes 70 minutes

OpenStudy (dan815):

9.75= 0.15m + 0.75, solve for m

OpenStudy (.whitedragon.):

so 65?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!