SOLUTION: how many liters of a 20% solution of a chemical should be mixed with 10 liters of a 50% solution to obtain a mixture that is 40% chemical

Algebra.Com
Question 994364: how many liters of a 20% solution of a chemical should be mixed with 10 liters of a 50% solution to obtain a mixture that is 40% chemical
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
how many liters of a 20% solution of a chemical should be mixed with 10 liters of a 50% solution to obtain a mixture that is 40% chemical
-----
Equation:
active + active = active
0.20x + 0.50*10 = 0.40(x+10)
-------
20x + 50*10 = 40x + 40*10
-------
-20x = -10*10
x = 5 liters (amt. of 20% solution needed)
-------------
Cheers,
Stan H.
-----------

RELATED QUESTIONS

How many liters of a 20% solution of a chemical should be mixed with 15 liters of a 50%... (answered by mananth)
How many liters of a 20% solution of a chemical should be mixed with 15L of a 50%... (answered by TimothyLamb)
How many liters of a 15% acid solution should be mixed with 10 liters of a 36% acid... (answered by josgarithmetic,greenestamps)
How many liters of a 10% solution of acid should be mixed with 60% solution of acid to... (answered by ewatrrr)
How many liters of a 20% chemical solution must be mixed with 6 liters of a 15% chemical... (answered by Alan3354)
How many liters of a 20% alcohol solution and a 10% alcohol solution should be mixed to... (answered by jim_thompson5910)
How many liters of a 16% acid solution should be mixed with 20 liters of 50% acid... (answered by richwmiller)
How many liters of a 20% acid solution should be mixed with 30 liters of 50% acid... (answered by Boreal,stanbon)
How many liters of a 17% acid solution should be mixed with 8 liters of an 11% acid... (answered by ewatrrr)