SOLUTION: there are 10 pints of a 40% acid solution that is being added to 4 pints of an 80% solution. what will be the level of acid concentration in the mixture?

Question 519208: there are 10 pints of a 40% acid solution that is being added to 4 pints of an 80% solution. what will be the level of acid concentration in the mixture?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
there are 10 pints of a 40% acid solution that is being added to 4 pints of an 80% solution. what will be the level of acid concentration in the mixture?
----
Equation:
acid + acid = acid
0.40*10 + 0.80*4 = x*(14)
----
Multiply thru by 100 to get:
40*10 + 80*4 = 1400x
40 + 320 = 1400x
x = 360/1400
x = 0.257 = 25.7%
=========================
Cheers,
Stan H.
=========================
RELATED QUESTIONS
I am HORRIBLE with percents, so if you can please help, please and thanks!... (answered by stanbon)

Can you help me with this word problem? A mechanic has 30 pints of an... (answered by josmiceli)

Give the total amount and the percent concentration of the mix that results when ten... (answered by robertb)

how much alcohol in pints must be added to 80 pints of a solution of alcohol and iodine... (answered by nerdybill)

A solution contains 11 pints of antifreeze and 8 pints of water. How many pints of water... (answered by josmiceli)

A container holds 10 pints of a solution which is 20% acid if 3 quarts of pure acid or... (answered by josmiceli,ikleyn)

How many pints of a 25% peroxide solution should be added to 10 pints of a 60% peroxide... (answered by ikleyn)

How many pints of pure antifreeze must be added to 20 pints of a 15% antifreeze... (answered by lwsshak3)

1 flask = 40 pints which contains 20% pure acid. If I add 10 more pints, what percentage (answered by josgarithmetic)