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kompoz [17]
4 years ago
5

Two times a number plus four is 22. What is the number

Mathematics
2 answers:
Artist 52 [7]4 years ago
8 0
2n + 4 = 22
      -4   -4
    2n = 18
   n=9
LiRa [457]4 years ago
4 0
Use the expression to solve for the number.

2n + 4 = 22
2n = 22 - 4
2n = 18
n = 18/2
n = 9

The number is 9.

Hope this helps :)
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Step-by-step explanation:

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If the operation ⊕ is defined by p⊕q = square root of p^2 +q^2, What is 8⊕6? <br><br> Please Explain
Elanso [62]

8⊕6 is 10

Step-by-step explanation:

We will use the substitution method to solve this problem

∵ The operation ⊕ is defined by p⊕q = \sqrt{p^{2}+q^{2}}

∵ You want to find 8⊕6

- Then do these steps:

  • Substitute p by 8
  • Substitute q by 6
  • Calculate the square root of 8² + 6²

∵ p = 8

∴ p² = 8² = 64

∵ q = 6

∴ q² = 6² = 36

∵ p⊕q = \sqrt{p^{2}+q^{2}}

- Substitute p by 8 and q by 6 in the rule above

∴ 8⊕6 = \sqrt{(8)^{2}+(6)^{2}}

- Substitute 8² by 64 and 6² by 36

∴ 8⊕6 = \sqrt{64+36}

∴ 8⊕6 = \sqrt{100}

∵ \sqrt{100}=10

∴ 8⊕6 = 10

8⊕6 is 10

Learn more:

You can learn more about the substitution method in brainly.com/question/9390381

#LearnwithBrainly

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