the trip is 80 miles long 40 miles out and 40 miles back If

the trip is 80 miles long, 40 miles out and 40 miles back. If the bus travels at a speed of 50 mph on the way out and 30 mph on the wat back. How many minutes will the class be on the bus?

Solution

Apply the distance formula:
d = rt
but in your case you\'re interested in time so solving for t:
t = d/r
.
Time going out:
t = d/r
t = 40/50 = 4/5 hour
Time coming back:
t = d/r
t = 40/30 = 4/3 hour
.
Total = 4/5 + 4/3
Total = 12/15 + 20/15
Total = 22/15 hour
.
Convert \"total time\" to minutes:
22/15 * 60 = 88 minutes