Question

susan has 19 cars available to rent.
let c be the number of cars she would have left after renting r of them.
write an equation relating c to r. then use this equation to find the number of cars she would have left after renting 13 of them.
equation:
number of cars left after renting 13 of them: \boxed{} cars

Explanation:

Step1: Define the equation

The total number of cars is 19. If \( R \) cars are rented, the number of cars left \( C \) is given by the equation \( C = 19 - R \).

Step2: Substitute \( R = 13 \)

Substitute \( R = 13 \) into the equation: \( C = 19 - 13 \).

Step3: Calculate the result

Calculate \( 19 - 13 = 6 \).

Answer:

Equation: \( C = 19 - R \)
Number of cars left: 6