Question

Patricia built 11 models avery 3 hours. At that rate, how long, in hours, will it take to build 5 models?

Answer 1

start by calculating the rate

$\frac{11\text{models}}{3\text{hours}}$

write a relationship with the numer of model required

$\begin{gathered} 11mod\Rightarrow3h \\ 5\mod \Rightarrow x \end{gathered}$

solve for x the relationship

$\begin{gathered} x=5\cdot\frac{3}{11} \\ x=\frac{15}{11}h \end{gathered}$

it will take 15/11 hours to buld 5 models.