Use the worked example above to help you solve this problem. Suppose $0\mathrm{.}450$ kg of water initially at $37\mathrm{.}0$C is poured into a $0\mathrm{.}300$ kg glass beaker having a temperature of $25\mathrm{.}0$C$.$ A $0\mathrm{.}500$ kg block of aluminum at $37\mathrm{.}0$C is placed in the water, and the system insulated. Calculate the final equilibrium temperature of the system.