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DedPeter [7]
3 years ago
7

Find the value of x.

Mathematics
2 answers:
Talja [164]3 years ago
7 0

Answer:

x=19

Step-by-step explanation:

you do 180-123 because angles on a straight line add up to 180

this gives you 57

then you divide this answer by 3 which gives you the answer of x

masha68 [24]3 years ago
6 0
171 because first u minus 180 from 123 then you times that by 3
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8. (-12v + 3) + (8v – 7)
Shkiper50 [21]

-4(v+1)

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2 years ago
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Solve the system of linear equations using ELIMINATION. Write your final solution as an ORDERED PAIR.
vesna_86 [32]

Answer:

The solution to the system of equations becomes:

(x, y) = (7, 12)

Step-by-step explanation:

Given the system of equations

5x - 3y = -1

2x - y = 2

Solving using the Elimination Method

\begin{bmatrix}5x-3y=-1\\ 2x-y=2\end{bmatrix}

Multiply 5x - 3y = - 1 by 2:  10x - 6y = -2

Multiply 2x - y = 2 by 5:  10x - 5y = 10

\begin{bmatrix}10x-6y=-2\\ 10x-5y=10\end{bmatrix}

subtraction operation

10x-5y=10

-

\underline{10x-6y=-2}

y=12

so the system of equations becomes

\begin{bmatrix}10x-6y=-2\\ y=12\end{bmatrix}

Therefore, the value of y = 12

For 10x - 6y = -2 plug in y = 12

10x - 6y = -2

10x - 6(12) = -2

10x - 72 = -2

10x = -2+72

10x = 70

dividing both sides by 10

10x/10 = 70/10

x = 7

Therefore, the value of x = 7

Thus, the solution to the system of equations becomes:

(x, y) = (7, 12)

8 0
2 years ago
What is % of 200 miles is 150 miles
natta225 [31]
75% is the answer ok

3 0
3 years ago
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What is the slope...?
Margarita [4]

Answer:

slope = -2  

Step-by-step explanation:

To find the slope, you can use the slope formula, \frac{y_2-y_1}{x_2-x_1}. x_1 and y_1 represent the x and y values of one point the line passes through, and x_2 and y_2 represent the x and y values of another point the line also passes through.

So, in order to answer the question, we need two points from the line. To find these points, look at the x and y values of the table - they form points. Thus, (-2, 0) and (-1,-2) would be two points the line passes through. Use those x and y values and substitute them into the formula. Then, solve:

slope = \frac{y_2-y_1}{x_2-x_1}\\= \frac{(-2)-(0)}{(-1)-(-2)}\\=  \frac{-2-0}{-1+2} \\= \frac{-2}{1} \\= -2

Thus, the slope is -2.

8 0
3 years ago
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a jumbo jet carries 330 passengers, 32 in first class, and the remainder in coach. if the average first class ticker is $860 and
Sholpan [36]

330-32 = 298

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107,280 + 27,520 = $134,800 total

5 0
3 years ago
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