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

Why does the narrator in the story “The Pioneer Hep-Cat” tell the story of General Henry T. Corrigan?
What structure and rhetorical style does the author use in the letter to the editor of the Daily News? compare/contrast with an emotional appeal sequential orde
How many grams of copper, CU are there in 2.55mol of CU?
In creative nonfiction, to make quotes sound like dialogue, writers: a. change the words b. put the quotes in context c. do nothing at all d. add imaginary char
What 13 out of 20 in a precent
what is the final temperature when 50 g of water at 20°c is mixed with 75 g of water at 60°c
how did the theory of social Darwinism justify European imperialism during the 19th century ?
find all the powers of 4 in the range 4 through 1000
0.5 moles of sodium chloride is dissolved to make 0.05litres of solution. find the molar concentration
What economic choices caused the economy to become unstable in the late 1920s?