Question

14% of the towns population, or above the age of 65 if there are about 320 residence over the age of 65, then what is the towns population?

Please help me!!

Answer 1

well, the town's population is really "x", which oddly enough is the 100%, now, we also know that 14% of that is 320.

`\begin{array}{ccll} amount&\%\\ \cline{1-2} x & 100\\ 320& 14 \end{array} \implies \cfrac{x}{320}~~=~~\cfrac{100}{14} \\\\\\ \cfrac{ x }{ 320 } ~~=~~ \cfrac{ 50 }{ 7 }\implies 7x=(320)(50)\implies x=\cfrac{(320)(50)}{7}\implies x\approx 2285`