A rental car agency charges 240 per week plus .25 per miles to r

Question

A rental car agency charges $240 per week plus $.25 per mile to rent a car. The charge for a mini van is $180 per week plus .40 cents per mile. After how many miles is the total charge for each vehicle the same? 

Answer 1

x= number of miles

car    cost is 240+.25x

van cost is 180+.40x

when are they equal?

240 + .25x = 180 +.40x

60 = .15x

15x = 6000

x=400

400 miles.  they will each cost $340