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znjsmom
Sep 19, 2007, 02:39 PM
Have a calculation question...

How many liters of 2% brind solution must be added to 30 liters of 10% brind solution to dilute it to a 8% solution.

Do not just want the answer, would like formula to solve...

galactus
Sep 19, 2007, 02:47 PM
x=amount of 2% solution.

0.02x+0.10(30)=0.08(\underbrace{30+x}_{\text{added to 30}})

Solve for x.