a)3
Explanation
The scale factor is the number that determines whether the new drawing is an enlargement or a
reduction of the original. If the scale factor is greater than 100%, then the resulting drawing is an
enlargement of the original drawing. If the scale factor is less than 100%, then the resulting drawing is
a reduction of the original drawing
a scale factor of 25 % means the new deawing will be 25 % of the original
then
Step 1
a)let x represents the escale factor
so
if
[tex]12\rightarrow100\text{ \%}[/tex]then
[tex]x\rightarrow25\text{ \%}[/tex]b) make the proportion
[tex]\frac{12}{100}=\frac{x}{25}[/tex]c) finally, solve for x
[tex]\begin{gathered} \frac{12}{100}=\frac{x}{25} \\ \text{cross multiply} \\ 12\cdot25=100\cdot x \\ 300=100x \\ \text{divide both sides by 100} \\ \frac{300}{100}=\frac{100x}{100} \\ 3=x \end{gathered}[/tex]so, the answer is 3
I hope this helps you
