Final answer:
To calculate the number of cars the basketball team needs to wash to raise more than $800, we can set up the inequality 10x > 800, where x represents the number of cars. Solving the inequality, we find that the team needs to wash more than 80 cars.
Step-by-step explanation:
To calculate the number of cars the basketball team needs to wash to reach their goal of raising more than $800, we can set up an inequality. Let's assume the team needs to wash x number of cars. Each car wash brings in $10 in revenue, so the total amount raised from washing x cars would be 10x. To reach their goal, this amount should be greater than $800. So, the inequality is 10x > 800.
To solve this inequality, we can divide both sides by 10 to isolate x. This gives us x > 80. Therefore, the basketball team needs to wash more than 80 cars to raise more than $800.