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Serjik [45]
3 years ago
10

A certain jewelry store sells customized rings in which three gemstones selected by the customer are set in a straight row along

the band of the ring. if exactly 5 different types of gemstones are available, and if at least two of the gemstones in any given ring must be different, how many different rings are possible?
Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
Let's assume the gemstones are A, B, C, D, E

1. A, B
2. A, C
3. A, D
4. A, E
5. B, C
6. B, D
7. B, E
8. C, D
9. C, E
10. D, E

A: 10 different rings are possible.

Hope this helps. - M
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Step-by-step explanation:

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Lim t^4 - 6 / 2t^2 - 3t + 7
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I think you meant to say

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3 years ago
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nignag [31]

Answer:

84

Step-by-step explanation:

Let the first digit = x

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===========

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Put that into the first equation.

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4y = 16                     Divide by 4

4y/4 = 16/4        

y = 4  

=================

x + 4 = 12

x + 4 - 4 = 12-4

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So the number is 84

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