Solve the Problem Using a System of Equations $4 \mathrm{mph}$ More Than Dana's, Then at What Rate Does Chuck Travel

Solve the problem using a system of equations.
-Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 99 miles in the same time that Dana travels 87 miles. If Chuck's rate of travel is $4 \mathrm{mph}$ more than Dana's, then at what rate does Chuck travel?

A) $29 \mathrm{mph}$
B) $38 \mathrm{mph}$
C) $28 \mathrm{mph}$
D) $33 \mathrm{mph}$