Question

Hannah has 127 books in her collection. Her school is hosting a book donation. There are z students at her school, and they each plan to donate the same number of books and reach a total donation of 300 books! How many books will Hannah have in her collection after her donation? Write your answer as an expression.

Answer 1

b/50

Step-by-step explanation: There were 150 students who donated a total of b books.

The students donated an average of b/150 books each.

Hannah donated 3 times as many books as the average.

b/150 * 3 = b/50

Hannah donated b/50 books.

Answer 2

Lets say each student donates x books;

There are z students. Therefore z * x =300

x = 300/z

Hannah is left with 127 - 300/z books after donating.