Kerion will take 1.5 hours to make 9 necklaces.
Step-by-step explanation:
Given,
12 necklaces are made in 2 hours.
We will find unit rate in terms of necklaces.
12 necklaces = 2 hours
1 necklace =
1 necklace =
For 9 necklaces, we will multiply 9 with unit rate
9 necklaces =
9 necklaces = 1.5 hours
Kerion will take 1.5 hours to make 9 necklaces.
Keywords: unit rate, division
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1,2,3,6,9,18,27,54. I hope I could help!