SOLUTION: Going to the airport, a car hits a hole damaging the front right wheel. The temporary tire decreases the average speed by 15 mph. If the 39 mile drive to the airport usually takes

Question 1024693: Going to the airport, a car hits a hole damaging the front right wheel. The temporary tire decreases the average speed by 15 mph. If the 39 mile drive to the airport usually takes 45 minutes, how much time should be budgeted for the drive home from the airport.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the normal speed to get to airport on time
Let = time in hrs to get to airport with decreased speed
(1)
(2)
----------------------
(2)
(2)
and
(1)
(1)
(1)
---------------
Plug this result into (2)
(2)
(2)
(2)
(2)
(2)

The time home from airport will be
45 min and 13 sec
----------------
check:
(2)
(2)
(2)
(2)
Error due to rounding off
RELATED QUESTIONS
In car front & rear wheel diameter is 21 &24 cm find no. Of revolution that the rear... (answered by ankor@dixie-net.com)

The front wheel of a wagon makes 110 more revolutions than the rear wheel in going a mile (answered by richwmiller,Theo)

the temporary tire forced us to decrease our average speed by 15 mph. if the 39 mile... (answered by fcabanski)

Four students drive to school in the same car. The students claim they were late to... (answered by edjones)

When the bicycle's front wheel travels from point A to point B, it does exactly 10... (answered by Alan3354)

Four employees drive to work in the same car. The workers claim they were late to work... (answered by Boreal,ikleyn)

In a vehicle front wheel is 4m in circumference and rear wheel is 6m in circumference,... (answered by KMST)

A bicycle tire travels about 50.27 inches during one rotation of the wheel. What is the... (answered by Fombitz)