SOLUTION: David's Rental Car charges an initial fee of $20 plus an additional $30 per day to rent a car. Alex's Rental Car charges an initial fee of $36 plus an additional $28 per day. For w

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Question 1167344: David's Rental Car charges an initial fee of $20 plus an additional $30 per day to rent a car. Alex's Rental Car charges an initial fee of $36 plus an additional $28 per day. For what number of days is the total cost charged by both of them the same ?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
20+30D=36+28D. Set each linear term equal to each other
2D=16
D=in 8 days they are equal and at $260 total.