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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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?
# of days and # of people are inversely related:
d = k/n
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
Equation:
d = 315/n
Solve "how many days would the water supply last for 9 people?"
d = 315/9
no. of days = 35
# of days and # of people are inversely related:
d = k/n
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
Equation:
d = 315/n
Solve "how many days would the water supply last for 9 people?"
d = 315/9
no. of days = 35
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