
FRANCIS F.
asked 02/18/18If you wanted to mix pure methane with water and end up with 100 gallons of 90% methane, how many gallons of each should you use?
If you wanted to mix pure methane with water and end up with 100 gallons of 90% methane, how many gallons of each should you use?
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1 Expert Answer

Mary H. answered 02/18/18
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Mixture problems look at the amount of each component and also at the amount of the substance you are looking for.
Here, let x = amount of water, y = amount of pure methane.
x+y = 100 gallons
Now to look at the amount of methane. Water has no methane in it, so all the methane comes from the pure methane.
y = .9 (100)
y = 90 gallons
x+ y = 100
x + 90 = 100
x= 10
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Michael P.
02/28/18