Question

If 2 pounds of meat can serve 5 people how many to serve 13

Answer 1

`\bf \begin{array}{ccll} \stackrel{meat}{lbs}&people\\ \cline{1-2} 2&5\\ x&13 \end{array}\implies \cfrac{2}{x}=\cfrac{5}{13}\implies 26=5x \\\\\\ \cfrac{26}{5}=x\implies 5(1)/(5)=x`