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2 years ago

The solution set of 4x-(x+7)=2(x+3)

Mathematics

1 answer:

maria [59]2 years ago

7 0

Step-by-step explanation:

<h3><u>To</u><u> </u><u>Solve</u><u>:</u><u>-</u></h3>

$\\ \tt{:}\leadsto 4x-(x+7)=2(x+3)$

<h3><u>SOL</u><u>UTION</u><u>:</u><u>-</u></h3>

$\\ \tt{:}\leadsto 4x-(x+7)=2(x+3)$

$\\ \tt{:}\leadsto 4x-x-7=2x+6$

$\\ \tt{:}\leadsto 3x-7=2x+6$

$\\ \tt{:}\leadsto 3x-2x=6+7$

$\\ \tt{:}\leadsto x=13$

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Which equation shows an example of the associative property of addition? (–7 i) 7i = –7 (i 7i) (–7 i) 7i = 7i (–7i i) 7i × (–7i

mr Goodwill [35]

The equation which shows the associative property of addition is; (–7 + i) +7i = –7 (i +7i).

<h3>What is the associative property of addition?</h3>

Associative property of addition postulates that Changing the grouping of addends does not change the sum of the numbers. As an instance, ( 5 + 3 ) + 4 = 5 + ( 3 + 4 )

Consequently, the equation which shows the associative property of addition is; (–7 + i) +7i = –7 (i +7i)

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2 years ago

Evaluate. Write your answer in simplified, rationalized form. Do not round.

borishaifa [10]

Answer:

cos(45°) = (√2)/2

Step-by-step explanation:

The cosine of 45° is the x-coordinate of the point on the unit circle where the line y=x intersects it. That is, it is the positive solution to the equation ...

x^2 +x^2 = 1

x^2 = 1/2 = 2/4 . . . . . collect terms, divide by 2, express the fraction with a square denominator

x = √(2/4) . . . . . . take the square root

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The cosine of 45° is (√2)/2.

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2 years ago

PLEASE HELP

Molodets [167]

B would be the correct answer

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3 years ago

You cut a circular hole 1/4 -inch in diameter in a piece of cardboard. With the cardboard 30 inches from your face, the Moon fit

Stolb23 [73]

Answer:

The Moon's diameter is greater than $1,500$ miles

Step-by-step explanation:

we know that

$1\ mile=63,360\ inches$

$1,500\ miles=1,500*63,360=95,040,000\ inches$

$240,000\ miles=240,000*63,360=15,206,400,000\ inches$

by proportion

Find the Moon's diameter

Let

x-----> the Moon's diameter in inches

$\frac{x}{15,206,400,000}=\frac{0.25}{30}\\ \\x= 15,206,400,000*0.25/30\\ \\x=126,720,000\ inches$

Compare

$126,720,000\ inches> 95,040,000\ inches$

therefore

The Moon's diameter is greater than $1,500$ miles

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3 years ago

What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?<br> a 3<br> b 4<br> c 5<br> d 9

Pepsi [2]

The answer would be B) x = 4.

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1.5x + 3 = 4.5x - 9

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12/3 = x

4 = x

x = 4.

7 0

3 years ago

The solution set of 4x-(x+7)=2(x+3)​

The solution set of 4x-(x+7)=2(x+3)