Answer:
She is absolutely correct!
Step-by-step explanation:
Let the total no. of stickers with Lena be x.
If she sticks 5 stickers per page, the number of pages she will use=[tex]\frac{x}{5}[/tex]
If she sticks 10 stickers per page, the number of pages she will use=[tex]\frac{x}{10}[/tex]
We all know, that the smaller the denominator the larger the number.
Therefore, [tex]\frac{x}{5} >\frac{x}{10}[/tex]
Condition being that x is a positive quantity which it automatically is.
So, Lena is right in her reasoning that she will use more no. of pages.