Donald needs to produce 5000 milliliters of 32% alcohol solution. At his disposal he has 40% alcohol solution and 20% alcohol solution. How much of each does he need in order to produce his desired solution?

The answer to your question is 3 L of solution 40% and 2 L of solution 20%

Explanation:

Data

Final volume = Vf = 5000 ml = 5 L

Final concentration = Cf = 32%

Concentration 1 = C1 = 40%

Concentration 2 = C2 = 20%

Volume 1 = x

Volume 2 = 5 - x

Process

1.- Write an equation to solve this problem

     VfCf = C1V1 + C2V2

2.- Substitution

    32(5) = 40x + 20(5 - x)

3.- Solve for x

     160 = 40x + 100 - 20x

     160 - 100 = 40x - 20x

               60 = 20x

               60/20 = x

               x = 3

     Then, Volume 1 = 3 L

4.- Find Volume 2

     Volume 2 = 5 - 3

     Volume 2 = 2 L

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.