radomes.openskiesproject.org
nottocheat123 nottocheat123
  • 31-12-2016
  • Mathematics
Answered

a small pump can drain a pool in 7 hours. a large pump could drain the same pool in 2 hours. how long will it take to drain the pool of both pumps are used simultaneously

Verified Answer :

Anonymous Anonymous
  • 31-12-2016

It would take about 5 hours. 
I hope this helps! Pls mark me as the Brainliest

Answer Link
Jim4109
Jim4109 Jim4109
  • 31-12-2016

Time together over time alone + Time together over time alone=1
X/7+X/2=1
X =1.56 hrs

2x/14 + 7x/14=14/14

2x+7x=14
9x=14
X= 14/9
X=

Answer Link

Related Questions

What is an object that represents determination
Following the 1896 presidential election the two major political parties both approached William Jennings Bryan to join them adopted much of the Peoples Partys
Which invention allowed women to have more free time in the early 1900s
What is the meaning of the unknown factor and quotient
1 Why did monarch and popes struggle with each other for control of society 2 How did the Catholic church support education PLEASE ANSWER EACH QUESTION WITH AT
Explain the nature of the relationship between the length of extremities and climate
What is mean ferme la bush
Which statement is a characteristic of a convex lens A It absorbs most light B It is thickest at the edges C It bends light rays inward D It is always made of g
What does the continental drift and plate tectonics have in common
How do you write onefourth of a number increased by seven