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Sagot :
Answer:
12 equal pipes are required to fill the tank in 21 minutes.
Step-by-step explanation:
nverse Variation:
If more number of equal pipes fill a tank, the faster the tank is filled.
If fewer number of equal pipes fill a tank, the slower the same tank is filled.
Inverse variation equation:
y = k/x
Where:
y = number of pipes
x = number of minutes
k = constant of variation
Solve for k:
14 = k/18
k = (14)(18)
k = 252
Solve for x, the number of pipes to fill the tank in y = 21 minutes:
21 = 252/x
x = 252/21
x = 12
hope its help
Answer:
12 equal pipes are required to fill the tank in 21 minutes.
Step-by-step explanation:
If more number of equal pipes fill a tank, the faster the tank is filled.
If fewer number of equal pipes fill a tank, the slower the same tank is filled.
Equation:
y = k/x
y = number of pipes
x = number of minutes
k = constant of variation
Solve for K:
14 = k/18
k = (14)(18)
k = 252
Solve for x, the number of pipes to fill the tank in y = 21 minutes:
21 = 252/x
x = 252/21
x = 12
ANSWER: 12 pipes
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