A car and a bus set out at 2 p.m. from the same point, headed in the same direction. The average speed of the car is 20 mph slower than twice the speed of the bus. In two hours, the car is 30 miles ahead of the bus. Find the rate of the car.
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B=X SPEED OF THE BUS.
C=2X-30 SPEED OF THE CAR.
DISTANCE=R*T
SEEING AS THE DISTANCES OF THE BUS IS 20 MILES LESS WE HAVE:
2(2X-30)=2X+20 NOTE WE HAVE TO ADD 20 MILES TO THE BUS DISTANCE TO MAKE THEM EQUAL.
4X-60=2X+20
4X-2X=20+60
2X=80
X=80/2
X=40 MPH FOR THE BUS.
C=2*40-30
C=80-30
X=50 PMH FOR THE CAR.
PROOF:
2*50=2*40+20
100=80+20
100=100
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Answer:
Step-by-step explanation:
1/2 is a complete answer but, it depends on what you're using it for.
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