subject
Mathematics, 04.01.2020 01:31 plumple

Three workers have to do a certain job. the first worker can finish the job in 8 hours. the second worker can finish the job in 4 hours. the third worker can also finish the job in 4 hours. how long will it take the three workers to finish the job if they work together?
pls

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
Klein read 30 pages of a book on monday and 1/8 of the book on tuesday. he completed the remaining 1/4 of the book on wendesday. how many pages are there in the book?
Answers: 2
question
Mathematics, 21.06.2019 14:30
What is the value of x? enter your answer in the box. (cm)
Answers: 1
question
Mathematics, 21.06.2019 19:00
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 3
question
Mathematics, 21.06.2019 20:00
Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39
Answers: 1
You know the right answer?
Three workers have to do a certain job. the first worker can finish the job in 8 hours. the second w...
Questions
question
Mathematics, 12.08.2020 04:01
Questions on the website: 13722367