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A jeweler makes a necklace using a total of 60 shells and shark teeth. The ratio of shells to shark teeth is 5:1. How many of each does she use?

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debmc7
50 shells, 10 shark teeth

The 5:1 ratio gives us a repeating pattern using 6 items. How many times can we get 6 out of 60? 10. So the pattern will repeat itself 10 times. We will have 10 sets of 5 shells and 1 shark tooth.

10 x 5 = 50
10 x 1 = 10
50 + 10 = 60

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