Respuesta :
First you have to find out how Long it takes her to make ONE necklace. It takes her 10 minutes to make one necklace so 9 necklace willegar take her 90 minutes or AKA 1 hour and 30 minutes.
Answer:
1.5 hours
Step-by-step explanation:
Given : Kerion can make 12 necklaces in 2 hours.
To Find : How long will it take her to make 9 necklaces?
Solution :
Time taken to make 12 necklaces = 2
Time taken to make 1 necklace = [tex]\frac{2}{12}[/tex]
So, Time taken to make 9 necklace = [tex]\frac{2}{12} \times 9[/tex]
= [tex]1.5[/tex]
Hence it will take her 1.5 hours to make 9 necklaces