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Find the value of x

.


12.5,−10,−7.5,x

; The mean is 11.5

.

Find the value of x 12 5 10 7 5 x The mean is 11 5

Answer :

Answer:

x = 51

Step-by-step explanation:

If the mean = 11.5, then that means all numbers added together divided by four = 11.5. Let's write this algebraically:

[tex]\frac{12.5+(-10)+(-7.5)+x}{4}=11.5[/tex]

Now, let's solve for x:

[tex]12.5-10-7.5+x=11.5(4)[/tex]

[tex]-5+x=46[/tex]

[tex]x=51[/tex]

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Rewritten by : Jeany

Step-by-step explanation:

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