AMC 8 2012 Problem 1

Rachelle uses 3 pounds of meat to make 8 hamburgers for her family. How many pounds of meat does she need to make 24 hamburgers for a neighbourhood picnic? $\textbf{(A)}\hspace{.05in}6 \textbf{(B)}\hspace{.05in}6\dfrac23 \textbf{(C)}\hspace{.05in}7\dfrac12 \textbf{(D)}\hspace{.05in}8 \textbf{(E)}\hspace{.05in}9$