SOLUTION: A car leaves a city and travels east at 50 mph. Two hours later another car traveling at 90 mph leaves the same city in pursuit of the first car.
How many miles from the city wi
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How many miles from the city wi
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Question 228135: A car leaves a city and travels east at 50 mph. Two hours later another car traveling at 90 mph leaves the same city in pursuit of the first car.
How many miles from the city will the second car overtake the first?
You can put this solution on YOUR website! D=RT
D=50*T
D=90(T-2)
SET THE 2 DISTANCES EQUAL & SOLVE FOR T
50T=90(T-2)
50T=90T-180
50T-90T=-180
-40T=-180
T=-180/-40
T=4.5 HOURS AFTER THE FIRST CAR LEAVE THE SECOND CAR WILL OVERTAKE IT.
PROOF:
50*4.5=90(4.5-2)
225=90*2.5
225=225
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