Our weight can pass 28000kg, we already have 4800 kg and will put more cc 100kg crates, so we have the expression:
[tex]28000\ge4800\text{ + 100}\times cc[/tex]Lets find an inequality for cc:
[tex]28000\ge4800\text{ + 100}\times cc\rightarrow28000-4800\ge100\times cc\rightarrow23200\ge100\times cc\rightarrow\frac{23200}{100}\ge cc\rightarrow232\ge cc[/tex]