Question

Shaneen has $30 to spend on CDs that each cost $10. She wants to calculate n, the number of CDs she can buy with her $30. Which inequality represents the maximum number of CDs she can buy?

Answer 1

Answer:

$10n \le 30$

$n \le 3$

Step-by-step explanation:

Given

$Total = \ 30$

$Cost (each) = \ 10$

Required

Determine the inequality

Assume she wants to buy n CDs.

If 1 CD costs $10, then n CDs costs 10n.

So, the inequality is:

$10n \le 30$

We used $\le$ because the amount she wants to spend cannot exceed 30

Divide both sides by 10, to solve for n

$n \le 3$