Answer:
[tex]7[/tex]
Step-by-step explanation:
The length of the piece of wood is [tex]220\ \text{cm}[/tex]
The piece of wood is cut into lengths of [tex]30\ \text{cm}[/tex]
So, we add [tex]30\ \text{cm}[/tex] till we get close to [tex]220\ \text{cm}[/tex]
[tex]30+30+30+30+30+30+30+10=220\ \text{cm}[/tex]
Hence, the complete pieces that are made is [tex]7[/tex] while [tex]1[/tex] piece is incomplete and is [tex]10\ \text{cm}[/tex] long.
