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Katyanochek1 [597]
3 years ago
13

Question 3 of 10 Solve |x + 5|= 7.

Mathematics
2 answers:
quester [9]3 years ago
6 0

<u>Answer</u>:

  • x = 2 and -2

<u>Step-by-step</u><u> explanation</u>:

|x + 5| = 7

x + 5 = 7

x = 7 - 5

x = 2

|x + 5| = 7

-x + 5 = 7

-x = 7 - 5

-x = 2

x = -2

x = 2 and -2

damaskus [11]3 years ago
4 0

Answer:

|x + 5|= 7

-7<(x+5)<7

-7<x+5<7

-7-5<x+5-5<7-5

-12 < x <2

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Given:

Daily evening newspapers in 2015 = 389

Percentage decrease from 2000 to 2015 = 46.5%

To find:

Number of newspapers in 2000 = ?

Solution:

Let the number of newspapers in 2000 = x

When 46.5% of the total newspapers in 2000 (x) is subtracted from the total  newspapers in 2000 (x), it will be equal to the number of newspapers in 2015.

Making the equation as per the given statement:

x-x\times 46.5\%=389\\\Rightarrow \dfrac{100x-46.5x}{100}=389\\\Rightarrow 53.5x=38900\\\Rightarrow x\approx \bold{727}

Therefore, the answer is:

There were <em>727 </em>newspapers in 2000.

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