x=gallons of 25%
y=gallons of 3.5%
.25x + .035y = .125(50)
y=50-x
using substitution for a system of equations:
.25x + .035(50-x) = 6.25
.25x + 1.75 - .035x = 6.25
.215x = 4.5
x=20.93 gallons of cream
y=29.07 gallons of milk
10 liters.
4 litres
1 percent is equal to the following fraction: 1/100.If you divide 25 by 100 you will obtain the value of 1 percent.As such: 25/100 = 0.25 = 1% of 25Now, multiply 0.25 by 20 to obtain the value of 20%.0.25 * 20 = 5Answer = 20 percent of 25 is 5.You could also say that 20 percent is equivalent to 1/5.1/5 of 25 is equal to 5
I suspect that the answer will depend on the energy output of the fuel. Different fuels produce different amounts of energy.
Obtain
25 gallons
50 gallons @ 3% must be added.
132 gallons 16 : 84 of 60 gallons = 9.6 : 50.4 gallons 80 : 20 of 132 gallons = 105.6 : 26.4 gallons added = 115.2 : 76.8 gallons = 1.5:1 ( 60:40)
2 gallons.
Suppose there are G gallons of the 30% mix. Then G gallons of 30% contain 0.3*G gallons of the active ingredient. Also 10% gallons = 0.1 gallons of 93% contain 0.093 gallons of the active ingredient. Therefore, the total volume is G+0.1 gallons which contains 0.3*G + 0.093 gallons of the active ingredient. So its strength is (0.3*G + 0.393)/(G+0.1) which is 65% or 0.65 Thus 0.3*G + 0.093 = 0.65*G + 0.065 So that 0.028 = 0.35G Or G = 0.08 gallons
5.6 quarts
0.25 gallons of water (or 1 quart)
The question is best solved using basic algebra. You need 20 gallons of 32% alcohol. This will contain 0.32*20 = 6.4 gallons of pure alcohol. Now suppose you have X gallons of 25% alcohol in the mixture. That contains 0.25X gallons of pure alcohol. Also, since you have 20 gallons in total, you must have 20-X gallons of the 35% alcohol. This will contain 0.35*(20-X) = 7 - 0.35X gallons of pure alcohol. Then, the total amount of pure alcohol is 0.25X + 7 - 0.35X = 7 - 0.1X gallons. So you have 7 - 0.1X = 6.4 or 0.6 = 0.1X or X = 6. So the answer is 6 gallons of 25% alcohol and 14 gallons of the stronger stuff!
You will need 3.2 gallons.
This is the butter used by Cracker Barrel
through carbohydrate containing foods
10% of 150 is 15