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

[99+ points] to whoever can answer this question!!!! SERIOUS answers only!!!!!!! i need help on this its due tomorrow i don't need question 8 all i need is 10

Where is secondary succession likely to occur? A.on land uncovered by a melting glacier B.on new rock created by a volcanic eruption C.in the middle of an undis

distance between parallel lines y=3x+10 and y=3x-20

Leonardo da vinci's study of human proportion was done in what media?

What benefit can be delivered from consuming blueberries

which does not show a direct variation between x and y?PLZZZ HELP ASAP?

which thunderstorms hazard caused more than 450 deaths in Florida between 1959 and 2013

PLEASE HELP ASAP WILL MARK BRAINLIEST!!!The relations between the united states and the soviet union began to change in the 1980s as new leadership appeared in

What is the molarity of a solution that contains 30 grams of naoh in 500 milliliters of solution?

Which statement BEST describes the theme of the story? A. Inner conflict takes away freedom. B. Wise decisions arise out of crisis. C. Nature is at war within