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kap26 [50]
3 years ago
7

Can u solve this for me: 72 + 4x = 2x + 82 and please show work

Mathematics
2 answers:
8_murik_8 [283]3 years ago
8 0
The answer is X = 5 because first you have to take away 2x from that side so u minus 2x from 4x that gives u: 72 + 2x = 82 then you have to minus 72 from both sides and that gives you 2x = 10 once you have that you divide both sides by 2 because you want the X by itself and once you get that X = 5. Hope this helped!
Ket [755]3 years ago
4 0
To solve an algebraic equation, you have to get x by itself so that x = something.  In order to get x by itself you have to manipulate the equation, making sure that whatever you do to one side, you also do to the other side to keep it true.  Let's do yours...

72 + 4x = 2x + 82

Let's keep x on the left and move the other numbers over to the right side (you can do it either way though).  Move 72 over to the right side by subtracting it from both sides (that cancels it on the left because 72 - 72 = 0).  Then combine like terms.

72 + 4x - 72 = 2x + 82 - 72
4x = 2x + 10

Now move 2x to the left side by subtracting it from both sides then combine like terms.

4x - 2x = 10
2x = 10

Lastly... divide each side by 2 (2/2 = 1 so that cancels it on the left)

x = 10/2
x = 5
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A sector of a circle has a central angle of 100 degrees. If the area of the sector is 50pi, what is the radius of the circle
MrMuchimi

The radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

An area of a circle with two radii and an arc is referred to as a sector. The minor sector, which is the smaller section of the circle, and the major sector, which is the bigger component of the circle, are the two sectors that make up a circle.

Area of a Sector of a Circle = (θ/360°) πr², where r is the radius of the circle and θ is the sector angle, in degrees, that the arc at the center subtends.

In the question, we are asked to find the radius of the circle in which a sector has a central angle of 100° and the area of the sector is 50π.

From the given information, the area of the sector = 50π, the central angle, θ = 100°, and the radius r is unknown.

Substituting the known values in the formula Area of a Sector of a Circle = (θ/360°) πr², we get:

50π = (100°/360°) πr²,

or, r² = 50*360°/100° = 180,

or, r = √180 = 6√5.

Thus, the radius of the circle having the area of the sector 50π, and the central angle of the radius as 100° is <u>6√5 units</u>.

Learn more about the area of a sector at

brainly.com/question/22972014

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1 year ago
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Answer:

416 I believe.

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Divide the number before by two to get the next term.

<em>How do you get the pattern?</em>

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