SOLUTION: A truck can be rentes 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 can be drive

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Question 549280: A truck can be rentes 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 can be driven in a day to make the rental cost for Basic rental a better deal?
Answer by luckee(2) About Me  (Show Source):
You can put this solution on YOUR website!
50+.20X<20+.50X
.20X-.50X<20-50
-.30X<-30
X>-30/-.30
NOTE: THE SIGN CHANGES WHEN DIVIDING BY A NEGATIVE VALUE.
X>100 GREATER THAN 100 MILES DRIVEN MAKES THE BASIC RENTAL OFFER A BETTER DEAL.
PROOF:
50+.20*100<20+.50*100
50+20<20+50
70<70