Sajia can sell 21 books she can sell if she comes back on sunday and the required inequality is [tex]9 + x \leq 30[/tex]
Solution:
Given that Sajia has 30 Books in her library
She sold 9 books at the thrift store on Saturday
To find: We have to write and solve an inequality to determine number of more books she can sell if she comes back on sunday
Let "x" be the number of more books she can sell if she comes back on sunday
We can write a inequality as:
[tex]\text{ books already sold } + \text{ number of books remaining } \leq \text{ total number of books she has }[/tex]
[tex]9 + x \leq 30[/tex]
Now moving 9 from L.H.S to R.H.S we get,
[tex]x \leq 30 - 9[/tex]
On solving 30 - 9 = 21,
[tex]x \leq 21[/tex]
So Sajia can sell 21 books she can sell if she comes back on sunday
