words problem question

Question

Laura is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices.

Company A charges an initial fee of $55

 and an additional 60

 cents for every mile driven.

Company B charges an initial fee of $67

 and an additional 40

 cents for every mile driven.

For what mileage will Company A charge less than Company B?

Write your answer as an  inequality, using m

 for the number of miles driven. 

Answer 1

55 +.6m = 67+ .4m

12 =.2m

m = 60 miles

m<60, A is cheaper

m>60, B is cheaper

m=60, they cost the same=$91