Question

It takes Kaeden 6 min to type two-thirds of a page. At this rate, how long will it take him to type a 5-page report?

Answer 1

`\begin{array}{ccc}(2)/(3)&-&6min\\\\5&-&xmin\end{array}\\\\\\cross\ multiply\\\\(2)/(3)x=5\cdot6\\\\(2)/(3)x=30\ \ \ \ /\cdot(3)/(2)\\\\x=15\cdot3\\\\x=45\ (min)\leftarrow answer`