Problema Solution
Find a 12% solution that was added to 80cc of a 22% solution in order to have a 16% solution
Answer provided by our tutors
Let represent the amount to add in CCs.
above equation is linear equation in one variable
let solve it
.12x +.22(80) =.16(x+80)
.12x +17.6 = .16x +12.8
.16x -.12x = 17.6 -12.8
0.04x =4.8
x= 120 cc