kansas city and denver are 330 miles apart. two cars start?
kansas city and denver are 330 miles apart. two cars start from these cities traveling toward each other. they meet after 3 hours. find the rate of each car if one travels 20 mph slower than the other.
Geography - 2 Answers
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Answer 1 :
car 1 70 mph car 2 50 mph
Answer 2 :
X = distance of car 1 Y= distance of car 2 Vx=velocity of car 1 Vy = velocity of car 2 t=time X+Y=330 X=Vx*t Y=Vy*t so Vx*t+Vy*t=330 20 mph slower: Vx=Vy-20 So. (Vy-20)*t+Vy*t=330 Vy-20+Vy=330/3 = 110 mph 2Vy=110 + 20 Vy= 130/2 = 65mph Vx = Vy-20 = 65-20 = 45 mph
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