59. Mary holds 2 part-time jobs each of which pays her a regular hourly wage. One day she worked 4 hours driving her cab and then spent 3 hours delivering packages. She earned $75 in wages for the day. A week later, she drove her cab 2 hours and delivered packages for 6 hours, earning $78 in wages. How much money does she earn per hour for delivering packages?

Answer and Explanation

Your Answer is

Correct Answer is E

Explanation

Assuming that the hourly remuneration of Mary drive her cab is x dollars, and the hourly remuneration of deliver packages is y dollars, according to the meaning of the question, we can get 4x+3y=75, 2x+6y=78, and solve the equations to get x=12 , y=9, so choose E.