SOLUTION: please help me solve these problems two motocyles travel toward each other from cities that are about 320km apart at a rate of 95km/hr and 65 km/hr. They started at the same ti

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Question 443097: please help me solve these problems
two motocyles travel toward each other from cities that are about 320km apart at a rate of 95km/hr and 65 km/hr. They started at the same time. In how many hours will they meet?
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2. Alvin paddles for 4 hours with a 5 km/ hr current to reach a campsite. The return trip against the same ccurrent took 9 hours. Find the speed of the boat in still water.
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3. A car travels at a speed of 42mph. if it had gone 14mph faster, it could have madi the trip at a half hour less time. How far apart are he towns?
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
two motocyles travel toward each other from cities that are about 320km apart at a rate of 95km/hr and 65 km/hr. They started at the same time. In how many hours will they meet?
Add up the speeds
95+65= 160 km/hr
Distance = 320 km
time = 320/160
=2 hours
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2. Alvin paddles for 4 hours with a 5 km/ hr current to reach a campsite. The return trip against the same ccurrent took 9 hours. Find the speed of the boat in still water.
13km/hr__________________________________________
3. A car travels at a speed of 42mph. if it had gone 14mph faster, it could have madi the trip at a half hour less time. How far apart are he towns?
let distance be x
x/42-x/56= 0.5
56x-42x=0.5 * 42*56
x=84 mi