Final answer:
To determine how many TI-Interactive software packages the math department can afford to buy, subtract the cost of the two new computers from the budget, then divide the remaining amount by the cost of each package. The math department can afford to buy 44 TI-Interactive software packages.
Step-by-step explanation:
To determine how many TI-Interactive software packages the math department can afford to buy, we need to subtract the cost of the two new computers from the budget and divide the remaining amount by the cost of each package.
Step 1: Subtract the cost of the two new computers ($1,300) from the upper limit of the budget ($3,500): $3,500 - $1,300 = $2,200
Step 2: Divide the remaining budget by the cost of each package ($50): $2,200 ÷ $50 = 44
The math department can afford to buy 44 TI-Interactive software packages.