TrueKing184
14.04.2020 •
Mathematics
A swimming pool can be filled in 11 hours if water enters through a pipe alone, or in 21 hours if water enters through a hose alone. If water is entering through both the pipe and the hose, how long will it take to fill the pool?
231/5000
Бассейн можно заполнить за 11 часов, если вода поступает только через трубу, или через 21 час, если вода поступает только через шланг. Если вода входит через трубу и шланг, сколько времени потребуется, чтобы наполнить бассейн?
Basseyn mozhno zapolnit' za 11 chasov, yesli voda postupayet tol'ko cherez trubu, ili cherez 21 chas, yesli voda postupayet tol'ko cherez shlang. Yesli voda vkhodit cherez trubu i shlang, skol'ko vremeni potrebuyetsya, chtoby napolnit' basseyn?
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Ответ:
Adam
Step-by-step explanation:
You just have to divide feet/second
Adam: 15 feet per second
15/1=15
Noah runs 599 feet in 40 seconds
599/40=14.9
Jake runs 1 mile in 384 seconds
1 mile=5280 feet
5280/384=13.8
liz runs 667 feet in 1 minute
1 minute=60 seconds
667/60=11.1