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

PLEASE HELP!!!!! (30 POINTS) Which of the following sections represents a federal court that would hear cases for the first time?

Which organelle is illustrated in the figure? A) Golgi apparatus B) Mitochondrion C) Nucleus D) Endoplasmic reticulum

What is the combining form cran/o

Try to remember a time when you saw an athlete being either a good sport or a poor sport. Describe the incident with as much detail as possible. Be sure to incl

Who did Confucius feel should be honored

The sound waves used for sonar are _____.

which expression have a value of 16/81? check all that apply. (2/3)^4, (16/3)^4, (4/81)^2, and (4/9)^2

PLEASE HELP ME ASAP IM TIMED !!!!!! the graph above reprenets a function what is the value of f(4)?

Can Someone Help Me ASAP!!

why are some atoms radioactive