Answer:
40
Step-by-step explanation:
25% is the same as [tex]\frac{1}{4}[/tex], so we can use the following equation:
[tex]\frac{1}{4}x = 10[/tex]
From there, multiply both sides by four to get [tex]x=40[/tex].
This means that 25% of [tex]40[/tex] is [tex]10[/tex].