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(3)/(11) \\ x=(15)/(11)h \end{gathered}`

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