SOLUTION: If tim leaves at 10 am traveling down a road at 16 mph. And then at 10:30 his sister leaves traveling down the same road at 36 mph. how long will it take the sister to catch up?

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Question 64901This question is from textbook
: If tim leaves at 10 am traveling down a road at 16 mph. And then at 10:30 his sister leaves traveling down the same road at 36 mph. how long will it take the sister to catch up? This question is from textbook

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If tim leaves at 10 am traveling down a road at 16 mph. And then at 10:30 his sister leaves traveling down the same road at 36 mph. how long will it take the sister to catch up?
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Tim DATA:
rate=16 mi/hr ; time=x hrs; distance= dr = 16x mi
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Sister DATA:
rate=36 mi/hr ; time = x-1/2 hr ; distane = dr = 36(x-(1/2))=36x-18 mi
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EQUATIOn:
distance = distance
16x=36x-18
20x=18
x=9/10 hr. or 54 minutes
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Stan H.