Hannah is sending some song files to a friend. She has already attached 9.25 MB of music to her email. The email program she is using will not send a message above 20 MB. What is the solution of an inequality showing the number of additional MB (m) that she can still attach to her email?

Question

Hannah is sending some song files to a friend. She has already attached 9.25 MB of music to her email. The email program she is using will not send a message above 20 MB. What is the solution of an inequality showing the number of additional MB (m) that she can still attach to her email?

Answer 1

The inequality to represent Hannah's situation is:

9.25 + m ≤ 20

Where "m" represents the additional MB she can still attach to her email.

We add 9.25 to both sides to isolate "m":

m ≤ 20 - 9.25

Simplify:

m ≤ 10.75

Therefore, the solution is:

m ≤ 10.75 MB