Question

On thurday, lisa had 5$ in her bank account. she went to target to purchase stickers for her class. each pack of stickers cost 2$

write an inequality that represents s, the number of stickers purchased that resulted in her account ending in -10.

Answer 1

Let's start by defining the variables:

s = number of sticker packs purchased
x = ending balance in Lisa's bank account

We know that Lisa started with $5 and each pack of stickers costs $2. Therefore, her bank account balance after purchasing s packs of stickers is:

x = 5 - 2s

We also know that her account ended with a balance of -$10. Therefore, we can set up the following inequality:

x = 5 - 2s ≤ -10

Simplifying this inequality:

5 - 2s ≤ -10
-2s ≤ -15
s ≥ 7.5

However, since s represents the number of sticker packs, it must be a whole number. Therefore, the final inequality is:

s ≥ 8

This means that Lisa must have purchased at least 8 packs of stickers in order for her account to end with a balance of -$10.