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

find the future value of $1400 deposited at7%for 2years if the account pays simple interest,and the account pays interest compounded annually.

Which of the following correctly describes the law of conservation of energy

Which best describes how an organism’s niche is determined?

f(x)=(x-4)^2-9 how to work equation

What is 26 cm/s =__ m/min

social security polynominal project answers

True or false? About 10 1/2 million more people live in Cairo than in Washington DC?

Victoria enjoys laughing with her friends as they walk around the track after school. Which best describes her hate rate during this activity?

Increased risk of liver disease, stroke, and cancer can be caused by consuming low doses of alcohol consuming medium doses of alcohol binge drinking alcohol

solve for x without a calculator. ln(x) + ln(x − 1) = 1