Final answer:
Jamal can purchase 5 boxes of candy.
Step-by-step explanation:
To find out how many boxes of candy Jamal can purchase, we need to subtract the cost of the nachos from his total budget and then divide the remaining amount by the cost of each box of candy.
So, Jamal's budget after purchasing nachos is:
$15 - $7.50
= $7.50.
Since each box of candy costs $1.50, we divide the remaining budget by the cost of each box of candy:
$7.50 ÷ $1.50
= 5.
Therefore, Jamal can purchase 5 boxes of candy.