SOLUTION: A person drives 300 miles, usually at 55 mph but an accident slows her down to 15 mph. if her trip took 6 hours, how many miles did she drive at the reduced speed?

Question 660269: A person drives 300 miles, usually at 55 mph but an accident slows her down to 15 mph. if her trip took 6 hours, how many miles did she drive at the reduced speed?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time spent driving at 15 mi/hr
= time spent driving at 55 mi/hr
Let = distance driven at 15 mi/hr
= distance driven at 55 mi/hr
--------
given:
(1)
(2)
-------------------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
(2)
and
(1)
(1)
(1)
(1)
She drove 11.25 mi at 15 mi/hr
check:
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
OK
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