Question

The math coach is delivering boxes of books to classrooms. She has 495 books to deliver. Each box contains 15 books. She has already delivered 4 boxes. Write an equation, where b is the number of boxes of books, that the math coach still needs to deliver.

Answer 1

The math coach has delivered 4 boxes of books, so the number of boxes she still needs to deliver is b. Each box contains 15 books, so the total number of books she still needs to deliver is 15b. She has 495 books to deliver in total. Therefore, we can write the equation:

15b = 495 - 4(15)

Simplifying the right-hand side:

15b = 495 - 60

15b = 435

Dividing both sides by 15:

b = 29

So the math coach still needs to deliver 29 boxes of books.