Which should be calculated first to solve this story problem?

Joey drove his new car 58.3 miles per hour for 3 hours on Saturday, and then 52.8 miles per hour for 4 hours on Sunday.

How far did Joey drive altogether?

A.

the number of miles driven in 3 hours

B.

the total number of hours driven

C.

the total number of miles driven

A.

58.3 m/h * (3 hours) = 174.9 miles

Joey drove 174.9 miles in 3 hours.

B. Since he was driving for 3 hours on Saturday and 4 hours on Sunday, the total time he was driving was 7 hours.

C. Since we already have the number of miles he was driving on Saturday, let us solve for how much he has driven on Sunday:

52.8 m/h * (4 hours) = 211.2 miles

Total miles driven = 211.2 miles + 174.9 miles = 386.1 miles