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

The open spaces appealed to many. the opportunities for independence also appealed to many.which uses a compound subject to combine the two sentences?

Higher consumer prices are likely to be accompanied by

what has the same level of nutrients as grapefruit?

You may feel pressured to become sexually active if your friends are sexually active. Please select the best answer from the choices provided. T F

In which sentence does the underlined noun clause function as a direct object? you must pack whatever you need for the beach.whoever works as a lifeguard needs

How does the selection of medium (written version vs. visual image) affect your understanding of theme?

A triangular prism has a base that is 6 cm by 4 cm and a height of 8 cm. If all dimensions are tripled, what happens to the volume?

How was the modern computer developed?

F(x) =2x^2-20x-3 I need help solving this problem

There are (6^4)^2 ⋅ 6^0 pigs on a farm. What is the total number of pigs on the farm?