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Bas_tet [7]
3 years ago
14

Bob gets 3n+2=20 as the final row of his magic number puzzle table. what was his starting number?

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
6 0
3n+2=20
     -2   -2
3n=18
divide by 3 
n=6
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umka2103 [35]

Answer:

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2 years ago
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nika2105 [10]
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3 years ago
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ANSWER

x = 13

EXPLANATION

Use the Pythagoras Theorem to obtain,

{x}^{2}  =  {12}^{2}  +  {5}^{2}

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{x}^{2}  = 144 + 25

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x =  \sqrt{169}

x = 13

8 0
3 years ago
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