Timothy24
Timothy24 Timothy24
  • 16-01-2017
  • Mathematics
contestada

Jane has 60 liters of 70% of acid solution. How many liters of water must be added to form a solution that is 40% acid?

Respuesta :

mehhum mehhum
  • 16-01-2017
let w = liters of water needed
4.70= acid in 40% solution 

4.70/70+w  = .28

28=.28.(70+w)
70+w=100
w=30


30 liters of water is needed
Answer Link

Otras preguntas

The primary purpose of a narrative essay is to A. tell a story. B. report the facts. C. change a mind. D. describe a place.
help me solve 2/3 =m/42
A block has a mass of 20g and measures 2cmx4cmx2cm will it sink or float
Jessica is baking a cake. The recipe says that she has to mix 96 grams of sugar to the flour. Jessica knows that 1 cup of this particular sugar has a mass of 12
What is the estimate of 7/12 + 5/6
Why does a black ball appear black in white light?
Compare the motion and spacing of particles as a material cools from a gas to a liquid and then to a solid phase.Do particles ever stop moving
The United Nations is an international ______________. a. spy agency c. aide organization b. peacekeeping force d. peace treaty
Bonheur est l'argent
Over time what could happen to an underwater island that forms near a mid-ocean-ridge