SOLUTION: The president of a company traveled 1800 mi by jet and 300 mi on a prop plane. The rate of the jet was four times the rate of the prop plane. The entire trip took a total of 5 h. F
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Question 83076This question is from textbook introductory algebra
: The president of a company traveled 1800 mi by jet and 300 mi on a prop plane. The rate of the jet was four times the rate of the prop plane. The entire trip took a total of 5 h. Find the rate of the jet plane. This question is from textbook introductory algebra
You can put this solution on YOUR website! The president of a company traveled 1800 mi by jet and 300 mi on a prop plane. The rate of the jet was four times the rate of the prop plane. The entire trip took a total of 5 h. Find the rate of the jet plane.
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Jet travel DATA:
Distance=1800 mi ; Rate = 4x mph ; Time = d/r = 1800/4x = 450/x hrs.
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Prop travel DATA:
Distance=300 mi ; Rate = x mph ; Time = d/r = 300/x hrs.
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EQUATION:
time + time = 5 hrs.
450/x + 300/x = 5
90/x + 60/x = 1
x=150 mph
4x= 600 mph (jet plane rate)
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Cheers,
Stan H.
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