SOLUTION: two planes leave montreal at the same time to fly to chicago. one plane is traveling at 720km/h and the other at 750km/h. the faster plane arrives four minutes earlier than the oth
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Question 495562: two planes leave montreal at the same time to fly to chicago. one plane is traveling at 720km/h and the other at 750km/h. the faster plane arrives four minutes earlier than the other what is the distance between montreal and chcago? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! two planes leave montreal at the same time to fly to chicago. one plane is traveling at 720km/h and the other at 750km/h. the faster plane arrives four minutes earlier than the other what is the distance between montreal and chcago?
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Fast plane DATA:
rate = 750 km/hr ; distance = x km ; time = d/r = x/750 hrs
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Plow Plane DATA:
rate = 720 km/hr ; distance = x km; time = d/r = x/720 hrs
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Equation:
time - time = 4/60 hr.
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x/720 - x/750 = 1/15 hr
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15*750x - 15*720x = 720*750
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30*15x = 720*750
x = 24*50
x = 1200 km
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Cheers,
stan H.
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