maddysarah maddysarah

01-03-2016
Mathematics

contestada

How much pure acid should be mixed with 6 gallons of a 60% acid solution in order to get an 80% acid solution?

Respuesta :

apologiabiology apologiabiology

01-03-2016

so pure=100%
x added

100%=1=pure

amount times purity=result

x=amount added
x times 1
6-x times (0.6) for te 60%
they add up to
6 times 0.8
solve
x+(6-x)0.6=6(0.8)
x=3

answer is 3 gallons replaced with 100% acid

Answer Link

Otras preguntas

Which of the following is true of high clouds? a. They eventually evaporate to form fog. b. They do not usually bring precipitation. c. They are composed mos

Rod brought 40 juice bottles to the picnic. He brought 28 apple juice bottles and the rest were orange juice bottles. What was the ratio of apple juice bottl

How does electrical forces act on a maglev train

What would happen to life on Earth if all the liquid fresh water were used up

between which two atoms of water are hydrogen bonds formed

Calculate the y-intercept 9x - 6y = -36 ( write as ordered pair )

What happened as the population grew in western territories? (Points : 3) Many people left and returned to the East. New states such as Colorado, the Dakotas, a

What is metabolism? What is the best description of metabolism? A. Metabolism is all of the components an organism needs to survive B. It is the balance an orga

Which of the following was NOT grounds for a runaway to be sent South after being brought before a federal commissioner?

If the sperm gamete that fertilizes an egg has a(n) _____ chromosome, it will form female offspring.