KambreyV242852 KambreyV242852
  • 03-11-2022
  • Mathematics
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Mr. Cohen wrote the expression below for his 3 cousins to use to find his age. n2 x7 - 3If n represents the number of cousins, what is Mr. Cohen's age?

Mr Cohen wrote the expression below for his 3 cousins to use to find his age n2 x7 3If n represents the number of cousins what is Mr Cohens age class=

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YunaR420822 YunaR420822
  • 03-11-2022

To solve the given problem, we have to evaluate the expression

[tex]n^2\times7-3[/tex]

at n=3.

First, we compute the square of 3:

[tex]\begin{gathered} 3^2\times7-3, \\ 9\times7-3. \end{gathered}[/tex]

Now, multiplying by 7, we get:

[tex]63-3.[/tex]

Finally, subtracting 3, we get:

[tex]60.[/tex]

Answer:

[tex]60.[/tex]

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