Mathematics, 14.12.2020 21:30 coastieltp58aeg
A cistern can be completely drained by a pipe in 6 hours. It can be filled by two pipes in 4 hours and 5 hours, respectively. How many hours will the empty cistern take to fill if all the pipes are running?
If x is the time to fill it, which of the following equations could be used to solve for t?
4x + 5x - 6x = 1
4x + 5x = 20
15x + 12x - 10x = 60
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 18:00
If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?
Answers: 1
Mathematics, 21.06.2019 22:30
Which of the following graphs could represent a quartic function?
Answers: 1
Mathematics, 22.06.2019 00:50
Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?
Answers: 2
Mathematics, 22.06.2019 02:10
Susan is paying $0.30 per $100 on her $483,000 home in homeowners insurance annually. if her annual homeowners insurance premium is divided into twelve equal monthly installments to be included on each of her monthly mortgage payments of $2,128.00, what is her total monthly payment?
Answers: 2
You know the right answer?
A cistern can be completely drained by a pipe in 6 hours. It can be filled by two pipes in 4 hours a...
Questions
Biology, 11.05.2020 23:57
English, 11.05.2020 23:57
Business, 11.05.2020 23:57
Business, 11.05.2020 23:57
Social Studies, 11.05.2020 23:57
Mathematics, 11.05.2020 23:57
Business, 11.05.2020 23:57
English, 11.05.2020 23:57
Social Studies, 11.05.2020 23:57
English, 11.05.2020 23:57
Mathematics, 11.05.2020 23:57
Mathematics, 11.05.2020 23:57
Mathematics, 11.05.2020 23:57
Business, 11.05.2020 23:57
Health, 11.05.2020 23:57
