To solve this equation, you use
x 30
--- = ----
200 100
30/100=3/10
200x3=600/10=60
60
80 liters
The chemist will use 100 liters of the 80% acid solution and 100 liters of the 30% acid solution to make a 200-liter solution that is 62% acid. The amount of acid in the 80% solution will be 0.8 * 100 = 80 liters, and in the 30% solution, it will be 0.3 * 100 = 30 liters.
120
To create a 400 L solution that is 62% acid, you would need 200 L of the 80% acid solution and 200 L of the 30% acid solution. This would result in a final solution with the desired concentration.
30% of 200 = 200*30/100 = 60
30% of 200 = 60
30% of 200 is 60
30% of $200 = $60
30 as a percent of 200 = 100*30/200 = 30/2 = 15%
You multiply .30 (30%) by 200. Which is 60
15 percent of 200 pounds is 30 pounds.
30% of 200 is 60.