Oblicz ile trzeba dodac wody do 8 kilogramów 26% roztworu soli kuchennej żeby otrzymac roztwór 10% .
8kg 26%......................10 - 0 = 10
.................10%
xg O%.......................26 - 10 = 16
8/x = 10/16
10x = 128
x = 12,8kg wody
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8kg 26%......................10 - 0 = 10
.................10%
xg O%.......................26 - 10 = 16
8/x = 10/16
10x = 128
x = 12,8kg wody