Mathematics, 04.11.2021 17:10 reese12345

A tank can be filled by a pipe in 18 hours. Five hours after this pipe is opened, it is supplemented by asmaller pipe, which, by itself can fill the tank in 22 hours. Simultaneously, a drainpipe is opened, which, byitself, can completely empty the tank in 30 hours. Find the total time, measured from the opening of thelarger pipe, to completely fill the tank

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, emokid7822

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Answers: 2

continue

Mathematics, 21.06.2019 16:00, andyyandere8765

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Answers: 3

continue

Mathematics, 21.06.2019 21:30, Joejoe1813

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?

Answers: 1

continue

Mathematics, 21.06.2019 21:40, salinasroel22

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Answers: 3

continue

You know the right answer?

A tank can be filled by a pipe in 18 hours. Five hours after this pipe is opened, it is supplemented...