Answer: 10x + 80 ≥ 648
Step-by-step explanation: To determine the number of hours, x, Javier must work to buy the laptop, we can set up an inequality based on the information given.
Javier saves $10 of his hourly pay, and he already has $80 saved. Let's denote the number of hours Javier needs to work as x.
The cost of the laptop is $648, and he saves $10 per hour. Therefore, the amount he saves from working x hours can be represented as 10x.
To determine the inequality, we can set up the following equation:
Explanation of the inequality:
- 10x represents the amount Javier saves by working x hours.
- 80 represents the $80 he already has saved.
- ≥ indicates that the total amount he saves (10x + 80) should be greater than or equal to the cost of the laptop ($648).