Joel has $20. He needs a calculator that costs $12 and some notebooks that cost $2 each.

Question

Part A: Write an inequality that can be  
        used to find the number of
        notebooks,n, that Joel can   
        afford to buy.
   
           12+2n ≤ 20

PART B: What is the graetest possible
        value of n? Show your work and 
        explain in words how you
        determined your answer.

Jen · Answer

Solve the inequality for n, just like you would an equation. Since it's greater than or EQUAL to, whatever you get for n is the answer. Subtract 12 from both sides, then divide both sides by 2.