Answer:
16%
Step-by-step explanation:
use the formula:
[tex]\frac{n-0}{0}=\frac{-x}{100}[/tex]
n=new price (21)
o=old price (25)
x=% (since its a discount the "x" will be negative)
so
[tex]\frac{21-25}{25}=\frac{-x}{100}[/tex]
[tex]\frac{-4}{25}=\frac{-x}{100}[/tex]
2) cross multiply:
-4(100)=-25x
-400=-25x
16=x
the percent discount is 16%
Hope this helps!
