Question

Some toll highways assess tolls based on where a car entered and exited. The table shows the highway tolls for a car entering and exiting at a variety of exits. Assume that the toll for the reverse direction is the same.

Entered Exited Toll
Exit 5 Exit 8 $0.50
Exit 8 Exit 10 $0.25
Exit 10 Exit 15 $1.00
Exit 15 Exit 18 $0.50
Exit 18 Exit 22 $0.75

b. Gordon travels from home to work and back each day. He lives at Exit 15 on the toll road and works at Exit 22. Write and evaluate an expression to find his daily toll cost. What property or properties did you use?

Answer 1

$1.25

Step-by-step explanation:

To find Gordon's daily toll cost, we need to add up the tolls for his entrance and exit on the toll road. Since he lives at Exit 15 and works at Exit 22, his entrance is Exit 15 and his exit is Exit 22.

The toll for Exit 15 to Exit 18 is $0.50, and the toll for Exit 18 to Exit 22 is $0.75. Therefore, Gordon's daily toll cost is:

$0.50 + $0.75 = $1.25

We used the property of addition to find Gordon's daily toll cost by adding the toll for his entrance and exit.