SOLUTION: You need a 55% alcohol solution. On hand, you have a 375 mL of a 50% alcohol mixture. You also have 80% alcohol mixture. How much of the 80% mixture will you need to add to obtain

Question 1028678: You need a 55% alcohol solution. On hand, you have a 375 mL of a 50% alcohol mixture. You also have 80% alcohol mixture. How much of the 80% mixture will you need to add to obtain the desired solution?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
You need a 55% alcohol solution. On hand, you have a 375 mL of a 50% alcohol mixture. You also have 80% alcohol mixture. How much of the 80% mixture will you need to add to obtain the desired solution?
-------
Equation:
alco + alco = alco
0.50*375 + 0.80x = 0.55(375+x)
-------------------------------
50*375 + 80x = 55*375 + 55x
-----
25x = 5*375
x = 375/b = 75 mL (amt. of 80% needed)
--------------------------
Cheers,
Stan H.
-------------
RELATED QUESTIONS
You need a 80% alcohol solution. On hand, you have a 75 mL of a 50% alcohol mixture. You... (answered by josgarithmetic)

You need a 80% alcohol solution. On hand, you have a 25 mL of a 50% alcohol mixture. You... (answered by ikleyn)

You need 270 mL of a 55% alcohol solution. On hand, you have a 50% alcohol mixture and a... (answered by josgarithmetic,ikleyn)

You need a 40% alcohol solution. On hand, you have a 375 mL of a 5% alcohol mixture. You... (answered by josgarithmetic)

You need a 55% alcohol solution. On hand, you have a 45 mL of a 30% alcohol mixture. You... (answered by josgarithmetic,richwmiller)

You need a 55% alcohol solution. On hand, you have a 30 mL of a 35% alcohol mixture. You... (answered by josgarithmetic)

You need a 45% alcohol solution. On hand, you have a 80 mL of a 40% alcohol mixture. You... (answered by josgarithmetic)

You need a 80% alcohol solution. On hand, you have a 225 mL of a 15% alcohol mixture. You (answered by josmiceli,mananth)

You need 320 mL of a 55% alcohol solution. On hand, you have a 80% alcohol mixture. How... (answered by ewatrrr)