To represent the situation where Alexis initially had 5 stickers, and her sister gave her 3 more, the expression is A+3, where "A" represents the initial number of stickers. If Alexis started with 5 stickers, the expression simplifies to 5+3, resulting in a total of 8 stickers.
In mathematical terms, the situation described can be represented using an expression. Let's denote the number of stickers Alexis initially had as "A." According to the given scenario, Alexis receives an additional 3 stickers from her sister. To express this mathematically, you would write: A+3.
Here, "A" represents the initial number of stickers Alexis had, and adding 3 to it accounts for the additional stickers given by her sister. The resulting expression
A+3 represents the total number of stickers Alexis has after her sister's gift.
In this specific case, if Alexis initially had 5 stickers, the expression would be:5+3
Simplifying this expression, you find that Alexis now has 8 stickers in total.