Mathematics, 21.11.2020 07:30, Perdikaris
An inlet pipe on a swimming pool can be used to fill the pool in 18 hours. The drain pipe can be used to empty the pool in 36 hours. If the pool is already two-thirds filled and then the drain pipe is accidentally opened, how long will it take to fill the pool once the drain pipe is opened?
Answers: 1
Mathematics, 21.06.2019 17:00, nihadsalim10
Find the roots of the equation below. x^2 - 6 + 9 = 0
Answers: 1
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