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

Write an argumentative essay about the type of diet you recommend the school serve for lunch based on the information presented in “Sarah’s Decision” and “What

What is the exact value of the side length of a square with an area of 30 square units?

What italian dessert literally translates to pick-me-up?.

Use the Law of Sines to solve (if possible) the triangle. If two solutions exist, find both. Round your answers to two decimal places. (If not possible, enter I

Describe the composition of humus and why it is an effective organic fertilizer.

Can someone help me on this I can’t seem to figure it out thanks I really appreciate it

hey! This is due at like 11 pm!

Can someone please help..

3. 7 yd 4 yd 18 yd 11 yd 14 yd

Johanna budgets $1,471 each month for fixed expenses. What percent of her net monthly income is that if she nets $2,611 semimonthly? Make answer a percent then