Question

9b
Alan needs 5 m of tape to pack a carton. If a roll of tape has 30 cm of tape, how much of tape would be left unused if she uses 17 rolls of tape?
​

Answer 1

Step-by-step explanation:

A roll of tap has 30cm of tap

So 17 roll has 17×30cm of tap

= 510cm of tap

= 5.10m of tap

Alan needs 5m of tap to pack the carton.

So, tap left unused when uses 17 roll of tap

= 5.10m -5m

= 0.10m

= 10cm