Susan will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $46 and costs an additional $0.12
per mile driven. The second plan has an initial fee of $57 and costs an additional $0.07
per mile driven.
For what amount of driving do the two plans cost the same?
_ miles

What is the cost when the two plans cost the same?
$_

Question

Susan will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $46 and costs an additional $0.12
 per mile driven. The second plan has an initial fee of $57 and costs an additional $0.07
 per mile driven.
For what amount of driving do the two plans cost the same?
_ miles
 
What is the cost when the two plans cost the same?
$_

mjdennis · Answer

Can you write the two equations, or do you need help with that?

kaynick · Answer

help please

mjdennis · Answer

Call "cost of plan 1" C1.
C1 equals the 'fee 1" plus "driving cost 1"
C1 = F1 + (cost-per-mile-1) * (miles)
Call our unknown number of miles "x"
C1 = ___ + ___ * x

Can you fill in the blanks?