SOLUTION: A hot air balloon is 20 feet above the ground and is rising at a rate of 15 feet per minute. Another balloon is 150 feet above the ground and is descending at a rate of 20 feet per

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: A hot air balloon is 20 feet above the ground and is rising at a rate of 15 feet per minute. Another balloon is 150 feet above the ground and is descending at a rate of 20 feet per      Log On


   

Question 745104: A hot air balloon is 20 feet above the ground and is rising at a rate of 15 feet per minute. Another balloon is 150 feet above the ground and is descending at a rate of 20 feet per minute. At what height will the balloons be the same distance from the ground?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A hot air balloon is 20 feet above the ground and is rising at a rate of 15 feet per minute. Another balloon is 150 feet above the ground and is descending at a rate of 20 feet per minute. At what height will the balloons be the same distance from the ground?
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Equation:
Let x be the time required to get the objects to the same height.
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20+15x = 150-20x
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35x = 130
x = 3.714 minutes
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Cheers,
Stan H.
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