Question

How do you figure this out , what's the answer

Answer 1

`\bf \begin{array}{cccccclllll} \textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\ \textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\ y&=&{{ k}}&\cdot&x \\ && y={{ k }}x \end{array}\\\\ ---------------------------\\\\`


`\bf \textit{the houses`

so "k", or the "constant of variation" is 1/2

now
`\bf a)\qquad h=\cfrac{1}{2}\cdot 50^2\qquad \qquad b)\qquad 3200=\cfrac{1}{2}\cdot d^2`

for a) get "h", and for "b", solve for "d"