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Irina-Kira [14]
2 years ago
14

Help help help help math math

Mathematics
2 answers:
FrozenT [24]2 years ago
8 0
5


??? • 7 = 7 • 5

this means you need an equation that equals 7 • 5 = 35 which means if you switch the numbers you could say 5 • 7
omeli [17]2 years ago
6 0
<h3>Answer:</h3>

5

<h3>Solution:</h3>
  • First, n*7 can be written as 7n.
  • Then, 7*5 is equivalent to 35.
  • So we have
  • 7n=35
  • In order to find the value of n, we need to divide both sides by 7:
  • n=5

Hope it helps.

Do comment if you have any query.

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Answer:

We conclude that the residents of Wilmington, Delaware, have higher income than the national average

Step-by-step explanation:

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Alpha, α = 0.05

Sample standard deviation, s =  $9,500

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