Question 481838: A remote control car races straight down the street at 26 miles per hour. Two hours later, a second remote control car races straight down the same street at 52 miles per hour in pursuit of the first car. From the moment the first car started, how many hours will it take the second car to catch up to the first?
On what scale is the speed of each car measured?
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A remote control car races straight down the street at 26 miles per hour. Two hours later, a second remote control car races straight down the same street at 52 miles per hour in pursuit of the first car. From the moment the first car started, how many hours will it take the second car to catch up to the first?
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The 1st car is 52 miles away (26*2)
The 2nd car gains on it at 26 mph (52 - 26)
52/26 = 2 hours from the start of the 2nd car
= 4 hours from the start of the 1st car
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On what scale is the speed of each car measured?
What does that mean?
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The 2 cars meet 104 miles from the start. You'll need a big hand-held controller to cover that distance. Plus, it will be hard to see what the cars are doing that far away.
Answer by stanbon(75887)  (Show Source):
You can put this solution on YOUR website! A remote control car races straight down the street at 26 miles per hour.
Two hours later, a second remote control car races straight down the same street at 52 miles per hour in pursuit of the first car.
From the moment the first car started, how many hours will it take the second car to catch up to the first?
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1st car DATA:
rate = 26 mph ; time = x+2 hrs ; distance = 26(x+2) miles
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2nd car DATA:
rate = 52 mph ; time = x ; distance = 52x miles
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Equation:
distance = distance
26(x+2) = 52x
26x + 52 = 52x
26x = 52
x = 2 hrs (time for the 2nd car to catch up)
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Cheers,
Stan H
x = 0.3846 hrs = 23.07 minutes
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On what scale is the speed of each car measured?
Ans: miles per hour
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Cheers,
Stan H.
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