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Sholpan [36]
3 years ago
11

I need to figure out what x

Mathematics
2 answers:
Fofino [41]3 years ago
8 0

Answer:

x = 63

Step-by-step explanation:

The sum of the angles of a triangle is 180

71+46+x = 180

Combine like terms

117+x =180

Subtract 117

117+x-117= 180-117

x =63

Anestetic [448]3 years ago
4 0

Answer:

63 \:  \: degrees

Step-by-step explanation:

46 + 71 + x = 180 \\11 7 + x = 180 \\ x = 180 - 117 \\ x = 63

<em>Sum</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>interior</em><em> </em><em>angles</em><em> </em><em>in</em><em> </em><em>a</em><em> </em><em>triangle</em><em> </em><em>is</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>1</em><em>8</em><em>0</em><em> </em><em>degrees</em>

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3x + 1 = 5X-13 if anyone knows what to do can they please help ​
Elza [17]

Answer:

  x = 7

Step-by-step explanation:

First, you look at the equation. Identify the locations of variable terms (both sides of the equal sign) and the constant terms (both sides of the equal sign).

If there are any parentheses, it is a good idea to use the distributive property to eliminate them. Here, there are none.

I like to start by subtracting <em>the variable term with the smallest coefficient</em>. Here, that is 3x, so we add -3x to both sides of the equation.

  3x -3x +1 = 5x -3x -13

  1 = 2x -13 . . . . . . . . . . . . combine like terms

Now, we have the only variable term on one side of the equal sign. We want it by itself, so we need to make the -13 go away. We do that by adding its opposite to both sides of the equation:

  1 +13 = 2x -13 +13

  14 = 2x . . . . . . . . . . . . combine like terms

Finally, we want the coefficient of 2 in the x-term to disappear. We make that happen by multiplying both sides of the equation by 1/2, the reciprocal of that coefficient.

  (1/2)(14) = (1/2)(2x)

  7 = x . . . . the solution

__

It is generally a good idea to <em>check your work</em> by seeing if your solution value satisfies the equation:

  3(7) +1 = 5(7) -13 . . . . put 7 where x is in the original equation

  21 +1 = 35 -13

  22 = 22 . . . . . . x = 7 is the solution

_____

<em>Additional comment</em>

By subtracting 3x from 5x, the result is 2x with a positive coefficient. We could solve the equation just as easily by subtracting 5x from 3x. That result would be ...

  -2x +1 = -13

Subtracting 1 would give

  -2x = -14

and you would multiply by -1/2 to get x=7. I personally like to avoid having this many minus signs show up in the problem. That is why I choose to subtract the x-term with the smallest coefficient.

5 0
3 years ago
260% of blank is 156
Reptile [31]

Answer:60?

Step-by-step explanation:

260%=2.6

156/2.6

5 0
3 years ago
(3,7) Quadrant where the point is located
AleksandrR [38]
Since both values are positive, it is in quadrant 1
6 0
3 years ago
HELP PLEASE 26 POINTS!! please provide an explanation tooo!!!!
Mars2501 [29]

Answer:

B

Step-by-step explanation:

In the case of this distance, trying to imagine 5 x 10^6 is obviously way too ridiculous

8 0
2 years ago
Read 2 more answers
The sum of two.number is.24. the.sun.of the square.of the two.nunber is 306. what is the product.of the two.number
tresset_1 [31]
A) x + y = 24
B) x^2 + y^2 = 306

A) x = 24 -y
Then substituting this into B)
(24 - y)^2 +y^2 = 306
576 -48y +y^2 + y^2 = 306
2 y^2 -48y + 270 = 0
x1 = 15
x2 = 9




3 0
3 years ago
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