The distance travelled to the appointment is 6720 miles
<h3>How to find the distance she travelled for the appointment?</h3>
Since margaret drove to a business appointment at 70 mph.
So, the distance on the trip,d = vt where
- v = speed to business appointment = 70 mph and
- t = time to business appointment
So, d = 70t
Since her average speed on the return trip was 60 mph. the return trip took 16 hr longer because of heavy traffic.
The distance on the return trip, D = v't' where
- v = speed on return trip = 60 mph and
- t = time on return trip = t + 16
So, D = 60(t + 16)
Since both distances are equal, we have that
d = D
70t = 60(t + 16)
70t = 60t + 960
70t - 60t = 960
10t = 960
t = 960/10
t = 96 h
Since the distance to the appointment d = 70t
Substituting t = 96 into the equation, we have
d = 70t
d = 70 × 96
d = 6720 miles
So, the distance to the appointment is 6720 miles
Learn more about distance here:
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