To find out how many quarts of water must be added, we first calculate the amount of pure substance in the 80 percent mixture. In 4 quarts of an 80 percent mixture, there are 3.2 quarts of the substance (0.8 x 4). Let ( x ) be the amount of water added. The total volume after adding water will be ( 4 + x ) quarts, and we want this to equal a 50 percent concentration, which gives the equation ( 3.2 = 0.5(4 + x) ). Solving for ( x ) gives ( 3.2 = 2 + 0.5x ), resulting in ( 0.5x = 1.2 ), or ( x = 2.4 ). Therefore, 2.4 quarts of water must be added.
4.2 quarts
If my math is correct it would take an additional ( .6 of a U.S. quart of antifreeze ) to increase a 30 % antifreeze volume to 40 % if the total volume of the mixture is 6 quarts
0.6
2 gallons.
50 gallons @ 3% must be added.
5.6 quarts
4.2 quarts
If my math is correct it would take an additional ( .6 of a U.S. quart of antifreeze ) to increase a 30 % antifreeze volume to 40 % if the total volume of the mixture is 6 quarts
The original mixture contains 41.4 ounces of glycol. for this to be 30 percent of the mixture, the total mixture must be 138 ounces, so 46 ounces of water must be added.
You need 1 1/3 quarts of pure antifreeze.
If you have added milk and/or sugar to your hot coffee, you will have to stir it well, in order to obtain a homogeneous mixture.
4 litres
10 liters.
40.8 grams
The original solution has 3.6 quarts of antifreeze in it. The equation then becomes (3.6 + x)/(12 + x) = 0.40, where x is the amount of antifreeze added. X is then equal to 2.
0.6
0.6 of a pint.