SOLUTION: An insurance representative traveled 1350 mi by commercial jet and then an additional 135 mi by helicopter. the rate of the jar was five times the rate of the helicopter. the entir

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Question 1113386: An insurance representative traveled 1350 mi by commercial jet and then an additional 135 mi by helicopter. the rate of the jar was five times the rate of the helicopter. the entire trip took 4.5. find the rate of the jar.
Found 2 solutions by Alan3354, josgarithmetic:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
An insurance representative traveled 1350 mi by commercial jet and then an additional 135 mi by helicopter. the rate of the jar was five times the rate of the helicopter. the entire trip took 4.5. find the rate of the jar.
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jar? Must mean jet.
4.5 what? I'll use hours.
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h = helicopter's speed
135/h + 1350/5h = 4.5 hours
135/h + 270/h = 4.5 hours
405/h = 4.5
h = 405/4.5 = 90 mi/hr
Jet's speed = 450 mi/hr

Answer by josgarithmetic(39625)   (Show Source): You can put this solution on YOUR website!
           SPEED        TIME       DISTANCE
jet           r        1350/r        1350
Helicopter    r/5       135/(r/5)       135
                       4.5


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-----speed of jet
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