SOLUTION: Greg is traveling north on a road while peter is traveling south on the same road. they pass by each other at noon, Greg driving at 35 mph and peter driving at 55 mph. at what time
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Question 626358: Greg is traveling north on a road while peter is traveling south on the same road. they pass by each other at noon, Greg driving at 35 mph and peter driving at 55 mph. at what time will they be 225 mi apart? Found 2 solutions by josmiceli, stanbon:Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! At the instant they meet, you can think of one of
them standing still and the other moving away at
the sum of their speeds.
I will say that Peter is traveling at mi/hr
He travels for time hrs
They are 225 mi apart at 2.5 hrs after noon which is 2:30
You can put this solution on YOUR website! Greg is traveling north on a road while peter is traveling south on the same road. they pass by each other at noon, Greg driving at 35 mph and peter driving at 55 mph. at what time will they be 225 mi apart?
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Draw the picture.
You have a crossing point, a line segment going north
that is 35x miles long where "x" is time for Gregg and
for Peter, and a line segment going south that is 55x miles long.
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Equation:
distance + distance = 225 miles
35x + 55x = 225
90x = 225
x = 2.5 hrs
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Time when they are 225 miles apart: noon + 2.5 miles = 2:30 PM
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Cheers,
Stan H.
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