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.
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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