Posted by Anonymous on .
Car rental agency A charges $50 per day plus 10 cents per mile driven. Agency B charges $20 per day plus 30 cents per mile driven. For a oneday rental it is cheaper to rent from agency A if you drive more than?

math 
PsyDAG,
50 + 10x = 20 + 30x
Solve for x. 
math 
Anonymous,
x=24

math 
I'm just a random dude,
the answer is 150