Question 1049113: Sarah has 65 milliliters of a 30% solution. How many millimeters of 75% solution should she add to obtain the required 35% solution? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = ml of the 75% solution needed = ml of concentrate in the 30% solution = ml of concentrate in the 75% solution
------------------------------------------------------
8.125 ml of the 75% solution is needed
-------------------------------------
check answer:
OK