Question

write the scale factor and side length

Answer 1

We look for a number that multiplying it by 5 gives us 10 to preserve scale and find it

$\begin{gathered} 5\times y=10 \\ y=2 \end{gathered}$

so, the scale is 2

to find the value of x we just apply the sacale to 8

$8\times2=16$

so, the value of x is 16