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andreev551 [17]
3 years ago
5

[WILL GIVE BRAINLIIEST! PLEASE HELP!!] In the first week of​ July, a record 1,040 people went to the local swimming pool. In the

second​ week, 105 fewer people went to the pool than in the first week. In the third​ week, 145 more people went to the pool than in the second week. In the fourth​ week, 196 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four​ weeks?
Mathematics
1 answer:
inysia [295]3 years ago
6 0

Answer:

13

Step-by-step explanation:

I'm just here for da points can I still get brainliitest?

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Answer:

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we divide the coefficient of the X by half :

in this case: 6/2 = 3 , then we do the following

The result obtained is raised to square power:  3^2=9

we sum and subtract by 9 to maintain the balance of the equation:

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(x+3)^{2}-9-5=0

(x+3)^{2} = 14

lets apply square root on both sides of the equation:

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we know:

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from where two solutions are obtained

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finally we have:

x_{1} =-3 +\sqrt{14} \\\\x_{2} =-3 -\sqrt{14}

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