Solution 1 = 50mL
Solution 2 = 20mL
Pls check if correct;
x = first solution
y = 2nd solution
.4x + .75y = .5(70) first equation
x+y = 70 2nd equation
x = 70 - y
subtitute x to 1st equation to get value of y, then subtitute value of y for x = 70 - y to get value of x.
There you go. Hope it is correct
Volume 1 x .4 + Volume 2 x .75 = 70 mL x .5
Volume 2 = 70 - Volume 1
V1 x .4 + (70-V1) x .75 = 70 mL x .5
solve for V1
Press and hold on/off and start button at same time for at least 5 seconds.
Good Luck. Regards George
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