SOLUTION: a desert outpost has a water supply that is sufficient to last 21 days for 15 people. at the same average rate of water consumption per person , how many days would t

Algebra ->  Test -> SOLUTION: a desert outpost has a water supply that is sufficient to last 21 days for 15 people. at the same average rate of water consumption per person , how many days would t      Log On


   



Question 471954: a desert outpost has a water supply that is sufficient to last 21 days for 15 people. at the same average rate of water consumption per person , how many days would the water supply last for 9 people?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a desert outpost has a water supply that is sufficient to last 21 days for 15 people. at the same average rate of water consumption per person , how many days would the water supply last for 9 people?
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# of days and # of people are inversely related:
d = k/n
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Solve for "k" using "outpost has a water supply that is sufficient to last 21 days for 15 people"
21 = k/15
k = 15*21
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Equation:
d = 315/n
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Solve "how many days would the water supply last for 9 people?"
d = 315/9
# of days = 35
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Cheers,
Stan H.
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