Question

James paid an initial fee of $6.00 for a movie rental service. Each time he rents a movie he is charged $2.00. Sarah uses a different movie

rental service that charges based on the equation y = 3x + 4, where y is the total cost and x is the number of movies rented. At what point
are the prices of the two services the same?
606

Answer 1

We have system of equations

James's total cost: Y = 2x + 6 (1)

Sarah's total cost: Y = 3x + 4 (2)

replace y = 2x + 6 and (2) => 2x + 6 = 3x + 4 => x = 2 => y = 10

So the total cost of renting movies by James And Sarah is equal

Explanation: