One hose can fill a tank in 15 minutes and another separate hose can fill it in 45 minutes. If both hoses are open, how many minutes will it take to fill the tank? (Express answers with two decimals)
Let x be the time the tank be filled if both hoses are open.
Equation?
It will take the two hoses _____ minutes to fill the tank
Let x be the time the tank be filled if both hoses are open.
Equation?
It will take the two hoses _____ minutes to fill the tank
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Answer:
1/15 + 1/45 = 1/x
3x + x = 45
4x = 45
x = 11.25 minutes
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Answer:
it will take 60 minutes
Step-by-step explanation: