can someone help me solve?
A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal than that for Roadrunners?
How would I write it out as an equation ? I have to show all steps.

Question

can someone help me solve?
A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 per day plus $0.50 per mile to rent the same truck. How many miles must be driven in a day to make the rental cost for Basic Rental a better deal than that for Roadrunners? 
How would I write it out as an equation ? I have to show all steps.

anonymous · Answer

the cost for Basic Rental is:     $\large C=0.2\cdot m+50 $
the cost for Roadrunners is:   $\large C=0.5\cdot m+20 $

find out how many miles must be driven in order for the cost from both rental companies to equal.  set the equations equal to each other and solve for m, the number of miles driven.