Bob drove from home to work at 50 mph. after work the traffic was heavier, and he drove home at 30 mph. his driving time to and from work was 1 hour and 4 minutes. how far does he live from his job?

1.
The formula we need to solve this problem is:

Distance = Speed * Time

2.
Bob traveled the distance from work to his house at 30 mph, for 1 hour 4 minutes.

let's convert 1 hour 4 minutes to hours.

     60 minutes are 1 hour
so   4 minutes are (4 minutes *1 hour)/ (60 minutes)= 0.067 hour.

Thus 1 hour 4 minutes = 1.067 h

The distance is Speed*Time= 30 mph*1.067 h=32.01 m

32.01 miles

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