Question

5. Which equation will solve the following word problem? The professor has 390 books that he wants to display in his office. Each shelf can hold 65 books. How many shelves will he need?

A)390s = 65


b)390(65) = s


c)s/390 = 65


d)390 = 65s

Answer 1

`65s = 390`

Explanation:

Given

`Books = 390`

`Shelf = 65`

Required

Write an expression for the scenario

1 shelf can hold 65 books.

s shelves can hold 65s books.

So:

`s\ shelves - 390`

Substitute 390 for s shelf

`65s = 390`