Question

Allison has a poster that is 15 in by 18 in. What will the dimensions of the poster be if she scales it down by a factor of one-third ?

15 in by 18 in

45 in by 54 in

2.5 in by 2 in

5 in by 6 in

Answer 1

hint:
if we scale down the original dimensions by 1/3, then the new dimensions will be these ones:
\[\Large \begin{gathered}
15 \to \frac{{15}}{3} = ...? \hfill \\
\hfill \\
18 \to \frac{{18}}{3} = ...? \hfill \\
\end{gathered} \]

Answer 2

so 15 ÷ 3 and 18 ÷ 3?

Answer 3

yes!

Answer 4

oh ok

Answer 5

so 15 ÷ 3 = 5 and 18 ÷ 3 = 6. Ok thx I get it now, I was really confused because I was doing 1 ÷ 3 • 15 and 18.

Answer 6

ok! :)