Question 390941
Two cars travel the same distance.  The first car travels 40 mph and reachis its destination in t hours.  The second car travels at a rate of 55 mph and reaches its destination 3 hours earlier than the first car.  How long does it take car one to reach the destination?
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Car A speed = 40 mph time = t hours
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Car B speed = 55 mph time = t-3 hours
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Distance = speed * time
Distance is same for both cars
40*t = 55(t-3)
40t=55t-165
40t-55t=-165
-15t=-165
/-15
{{{(highlight(t= 11 hours))}}}
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m.ananth@hotmail.ca