Friday

July 25, 2014

July 25, 2014

Posted by **garrick** on Monday, September 15, 2008 at 9:23pm.

- math -
**Anonymous**, Monday, September 15, 2008 at 9:28pm.5x + 1y = .8(300)

x + y = 300

x = 300 - y

.5(300-y) + 1y = 240

150 - .5y + 1y = 240

1/2y = 90

y = 180 ml

300-180 = x = 120ml

use 120ml 50%

use 180ml 100%

**Related Questions**

Chemistry - Glutamic acid is triprotic amino acid with pKa values of 2.23, 4.42...

Algebra - how much pure acid must be added to 15 ounces of an acid solution ...

Algebra - 100mL of a solution contains 30 mL of acid; this is called a 30% acid ...

Solving Rational Equations - 100mL of a solution contains 30 mL of acid; this is...

Algebra 2 - How much pure acid must be added to 6 milliliters of a 5% acid ...

Algebra 1 - Bunson Burner has 3 liters of a 10% acid solution. How much of pure ...

College Chemistry - Science - At room temperature (25°C), 45 mL of a 0.002 M ...

algebra 2 - A chemist mixes some 20% acid solution with pure 100% acid to ...

algebra - A chemist mixes some 20% acid solution with pure 100% acid to increase...

Chemistry- Acids and Buffers - Cyanic Acid is a weak acid HOCN + H2O <--> ...