Question

Charlie needs to rent a car. Company A charges a rate of $40 per day,d, and company B charges a $60 fee plus $20 per day. For what number of days is the cost the same?

Answer 1

Answer:

  3

Step-by-step explanation:

Since d represents the number of days the car is rented, Company A charges ...

  40d

Company B charges ...

  60 +20d

We want to find the value of d that makes these charges be the same value:

  40d = 60 +20d

  2d = 3 +d . . . . . . . divide by 20

  d = 3 . . . . . . . . . . . subtract d

The cost is the same for 3 days.