Question

The height of a building is proportional to the number of floors. The figure shows the height of a building with 7 floors. Complete parts a and b.

Answer 1

well, the height of the building is 119 feet, as we can see right there on the picture. Now, there are 7 floors from the ground up, so the ratio is simply

`\cfrac{\stackrel{overall~height}{119}}{\underset{floors}{7}}\implies \cfrac{17}{1}\implies \stackrel{unit~rate}{17}\hspace{5em}\cfrac{17~feet}{1~floor}\qquad \begin{array}{llll} \textit{each floor is}\\ \textit{17 feet high} \end{array}`