llcoolanaswerne1654 llcoolanaswerne1654
  • 10-10-2017
  • Mathematics
contestada

Pump a can empty a pool in 20 hours and pump b can empty it in 24 hours. working together, how long

Respuesta :

daint20
daint20 daint20
  • 10-10-2017
I would guess 4 hours in that case
Answer Link

Otras preguntas

Which example best shows the contribution of African American troops during the Civil War? a)the First Battle of Bull Run b)the Second Battle of Bull Run c)the
Which method would be important to use while writing an instruction manual for a new DVR? a. including some humor to make it more interesting b. writing a vivid
How to divide a given ratio into a given amount
Which form of energy is responsible for the primary energy output of the sun and other stars? (Points : 1) chemical energy nuclear energy mechanical energy elec
how to solve 4n-40=7(-2n+2)
What chemical substances needed by body cells that result from the process of digestion is called
The disaster at Chernobyl in 1986 was significant for what reason? a) It was a nuclear accident. b) A tsunami destroyed an entire city c) It was caused by
Maya wants to buy a piano. The piano measures 19/4 feet long. She has a space 5 feet long for the piano in her house. Does she have enough room? Draw a number
a large planet that has a deep massive
the perimeter of a rectangle is 66 cm and its width is half its length. what are the length and the width of the rectangle?