Problema Solution
Ms. Reynold's sprinkler system has 9 stations that water all the parts of her front and back lawn. Each station runs for an equal amount of time. If it takes 48 minutes for the first 4 stations to water, how long does it take to water all parts of the lawn?
Answer provided by our tutors
Let 'x' represent the minutes that 9 stations need to water the entire lawn.
The time is inversely proportional to the number of stations:
48*4 = x*9
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click here to see the equation solved for x
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x = 21.33 min
It takes 23.33 minutes for the 9 stations to water the entire lawn.