Alex needs 80 cm of thread for a sewing project. the thread is on a spool with a circumference of 10 cm. how many times must alex unwind the spool to get the length of thread he needs?

Answer-

Alex must Alex unwind the spool 8 times in order to get the length of thread he needs.

Solution-

The length of the thread needed for sewing project = 80 cm

The length of the thread unwinded with each rotation of the spool = circumference of the spool = 10 cm

So, the number of turns Alex must unwind,

Therefore, he must unwind 8 times to get the length he needs.

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step-by-step explanation: