Reann has stickers. She gives her friend half, and then her brother gives her 8 new ones. She ends up with 12 stickers. How many did she start with? Identify the operations needed to solve this problem.(1 point)

Responses

addition and division
addition and division

addition and multiplication
addition and multiplication

subtraction and multiplication
subtraction and multiplication

subtraction and division.../

1 answer

To solve the problem, we can identify the operations involved as follows:

  1. Let \( x \) be the number of stickers Reann started with.
  2. Reann gives her friend half of her stickers, so she has \( \frac{x}{2} \) left.
  3. Her brother then gives her 8 stickers, resulting in \( \frac{x}{2} + 8 \).
  4. She ends up with 12 stickers, which gives us the equation:

\[ \frac{x}{2} + 8 = 12 \]

  1. To solve for \( x \), we first subtract 8 from both sides:

\[ \frac{x}{2} = 12 - 8 \] \[ \frac{x}{2} = 4 \]

  1. Next, we multiply both sides by 2 to find \( x \):

\[ x = 4 \times 2 \] \[ x = 8 \]

Thus, Reann started with 8 stickers.

The operations needed to solve this problem are addition and division.

So the correct response is: addition and division.