12 / 3 = 0.25 = 25%
3 is 25% of 12.
It depends on what the problem is!
1.5 pints
x = 10% solution y = 35% solution .1x+.35y=.20*12 x+y=12 y=12-x .1x+.35(12-x)=.20*12 .1x+4.2-.35x=2.4 -.25x=-1.8 .25x=1.8 x=7.2 gallons y=4.8 gallons
Raise your score by 12%.
Your problem here probably lies in the fact that you are functionally illiterate. Nonetheless, the answer is 32 litres. 75% of 16 = 12 12/0.25 = 48. 48 - 12 - 4 (the original volume of water) = 32.
It depends on what the problem is!
1.5 pints
To find percents, divide the whole by 100 and multiply by percent rate. For this question, the example problem and solution will be:Problem: find 14 percent of 1600Solution: 1600 / 100 * 14 = 16 * 14 = 224
The solution to 0.5 percent of what number is 12 is 2,400. The number name is 2 thousand 400.
x = 10% solution y = 35% solution .1x+.35y=.20*12 x+y=12 y=12-x .1x+.35(12-x)=.20*12 .1x+4.2-.35x=2.4 -.25x=-1.8 .25x=1.8 x=7.2 gallons y=4.8 gallons
4 litres
No, you cannot make a 6% peroxide solution by diluting a 12% peroxide solution with water. To make a 6% peroxide solution, you would need to mix equal parts of the 12% peroxide solution with water.
pharmacist
The difference between 6%, 9%, and 12% Hydrogen Peroxide solution is the Hydrogen content.
Let x represent the amount of 12% solution and (10-x) represent the amount of 20% solution. The equation to solve is: 0.12x + 0.20(10-x) = 0.14(10). Solving for x gives x = 4, so you need 4 gallons of the 12% solution and 6 gallons of the 20% solution to make 10 gallons of the 14% solution.
To make a 2% sodium hypochlorite solution from a 12% solution, you can set up the equation: 12% solution * x litres = 2% solution * 100 litres Solving for x, you get: x = (2% solution * 100 litres) / 12% = 16.67 litres Therefore, you would need 16.67 litres of the 12% sodium hypochlorite solution to make 100 litres of a 2% solution.
Raise your score by 12%.