3 years ago

Find one value of x that is a solution to the equation: (2x-3)^2=4x-6

Mathematics

1 answer:

Inessa05 [86]3 years ago

6 0

One value of x would be x=5/2 and x=3/2

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R 3. The mean of 4 numbers is 8. Three of the numbers add up to 22. What is the last number?

statuscvo [17]

<h2><em><u>Solution</u></em> : </h2>

let the last number be x

we know,

$\boxed{mean = \frac{sum \: \: of \: \: all \: \: observations}{number \: \: of \: \: observations} }$

So,

$\hookrightarrow \: 8 = \dfrac{22 + x}{4}$

$\hookrightarrow \: 8 \times 4 = 22 + x$

$\hookrightarrow \: 32 = 22 + x$

$\hookrightarrow \: x = 32 - 22$

$\hookrightarrow \: x = 10$

therefore, the last number is 10.

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Alla [95]

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Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B28%7D%7B40%7D" id="TexFormula1" title="\frac{28}{40}" alt="\frac{28}{40}" align="abs

Vitek1552 [10]

Answer:

7/10

Step-by-step explanation:

28/40=

14/20 =

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Step-by-step explanation:

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