SOLUTION: A helicopter traveling at 120 mph overtakes a speeding car traveling at 90 mph the car had a 0.5 hour head start. how far from the starting point did the helicopter overtake the c

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Question 358551: A helicopter traveling at 120 mph overtakes a speeding car traveling at 90 mph the car had a 0.5 hour head start. how far from the starting point did the helicopter overtake the car?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
D=120(T-.5)
D=90T
120(T-.5)=90T
120T-60=90T
120T-90T=60
30T=60
T=60/30
T=2 HOURS AFTER THE CAR LEAVES THE HELICOPTER WILL CATCH UP.
PROOF:
120(2-.5)=90*2
120*1.5=180
180=180