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94%(0,5+x)=0,45+x
0,47+0,94x=0,45+x
0,94x-x=0,45-0,47
0,06x=0.02
x=0,33 l
V2 = V1 + x
x - szukana ilość wody
10 % * V1 = 6%*V2
10%*V1 = 6%V1 + 6%x
6%x = 4%*V1
x = 3/2 *V1 = 3/4 l = 0,75l
Odp. Trzeba dolać 3/4l wody.
x-----------6%
x=0,5×6÷10=0,3l