Problems

For each problem, follow the steps of Section $14\mathrm{.}4-$that is$,(1)$ identify the system, $(2)$ determine whether the process is batch or rate, and so on$.$

$14\mathrm{.}1$ Two liquids, A and B$,$ are mixed together. A is $5\mathrm{.}00$ percent solids, the rest water. B is $11\mathrm{.}0$ percent solids, the rest water. To the mixture is added $18\mathrm{.}5$ kg of bone$-$ dry solids resulting in a mixture of $2150$ kg containing $8\mathrm{.}25$ percent solids. What were the original amounts of the liquids A and B$?$