Question

If you wanted to mix pure methane with water and end up with 70 gallons of 20% methane, how many gallons of each should you use? You should use gallons of water and gallons of methane > Next Question​

Answer 1

You want 40% of 140 gallons to be methane,

so 60% of 140 gallons is water

methane: 0.4(140) = 56 gallons

water: 0.6(140) = 84 gallons

Explanation: