SOLUTION: a lab technician needs to combine some 30% alcohol sloution and 35% alchool solution to make 5 l of 33% alcohol solution. How many litres of the 30% and of the 35% solution will be

Question 184235: a lab technician needs to combine some 30% alcohol sloution and 35% alchool solution to make 5 l of 33% alcohol solution. How many litres of the 30% and of the 35% solution will be used?
thnxx
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
.35X+.30(51-X)=51*.33
.35X+15.3-.30X=16.83
.05X=16.83-15.3
.05X=1.53
X=1.53/.05
X=30.6 LITERS OF 35% ALCOHOL IS NEEDED.
51-30.6=20.4 LITERS OF 30% ALCOHOL IS ALSO NEEDED.
PROOF:
.35*30.6+.30*20.4=16.83
10.71+6.12=16.83
16.83=16.83
RELATED QUESTIONS
A lab technician needs to make 400 kg of 51% alcohol solution by combining 60% alcohol... (answered by josgarithmetic,greenestamps)

Marisol needs 5 liters of a 40% alcohol solution. The lab has two containers, one with... (answered by josgarithmetic,MathTherapy)

A lab technician needs to make 12 liters of 45% alcohol. How much of 40% alcohol and 60%... (answered by josgarithmetic,MathTherapy,ikleyn,ewatrrr,greenestamps)

A lab technician has 40% alcohol solution and 60% alcohol solution. He need to make 100... (answered by mananth)

Hello Tutors of Algebra.com, I don't if is the right section but here goes A lab... (answered by stanbon)

Milton needs 45 liters of 20% alcohol solution. He only has 15% alcohol solution and 30%... (answered by richwmiller)

Milan needs 8 oz of a 20% alcohol solution for a chemistry lab. Unfortunately, his... (answered by MathLover1,checkley79,josmiceli)

A chemist needs 18 L of a 10% alcohol solution but only has a 30% alcohol solution. How... (answered by stanbon)

A lab assistant is asked to mix a 30% alcohol solution with 21 liters of an 80% alcohol... (answered by ewatrrr)