Question

Angela had $6w. AFter buying some books at $17 each, she had $w left.

(a) Find the number of books Angela bought in terms of w.
(b) If w = 34, how many books did Angela buy?

Answer 1

5w/17

10 books

Explanation:

Initial Amount had = $6w

Cost per book = $17

Amount had after book purchase = $w

The number of books purchased :

(Initial amount had - amount had after purchase) / cost per book

($6w - $w) / $17

$5w / $17

Number of books purchased = 5w/17

B.) if w = 34

Number of books purchased :

(5*34) / 17

= 170 / 17

= 10 books