SOLUTION: Muscle Movers charge $85 plus $40 an hour to move households across town. Champion Moving charges $60 an hour for cross-town moves. For what lengths of time is Champion more expe

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Question 389886: Muscle Movers charge $85 plus $40 an hour to move households across town. Champion Moving charges $60 an hour for cross-town moves. For what lengths of time is Champion more expensive?
Show your work not just the final answer.

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Let t+=+numbers-+of-+hours
MB+_Movers_+Cost+=+40t+%2B+85
and
Champ+_Mover+_Cost+=+60t
60t+%3E+40t+%2B+85
60t+-+40t+%3E+85
20t+%3E+85
t+%3E+85%2F20
t+%3E+4.25
We can say when t+=+5+hr, Champ is more expensive.