Question

Mr. Harrison has $416 to spend on supplies for his classroom. He will buy a bookshelf and some books. The bookshelf costs $80. He will buy books that cost $4 each. Write, then solve an inequality to find the number of books (b), at most, that Mr. Harrison can buy. PLEASE EXPLAIN

Answer 1

416=80 + 4b
b=books
subtract 80 from both sides
416-80 = 80-80+4b
336=4b now divide both sides by 4
336/4=4b/4
84=b
he can buy 84 books at the max