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butalik [34]
3 years ago
10

(15P) PLEASE HELP ME ASAP NEED HELP!

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
7 0

Answer:

x=7

y=2

Step-by-step explanation:

10 + 2x = -2y ➡y = -5-x

replace y with -5-x in the first equation

-5-x-x = 9➡ -2x-5 = 9 ➡-2x = 9+5 ➡ x = -7

now use this information to find value of y

y - (-7)=9 ➡y = 2

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Answer:

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3 years ago
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Use photo math it’s a great tool
6 0
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Help pls!!!!!!!!!!!!!!!!!
denpristay [2]

Answer:

the quotient of four times x plus six and two minus two times x plus fourteen

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
What is the axis of symmetry for the graph of y =2x^2-8x+2? x=
Tanzania [10]

You can use this equation to find the axis of symmetry or the vertex of the quadratic equation as long as it is in standard form

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6 0
3 years ago
What is the value of x?<br> Enter your answer in the box.<br> x =
olasank [31]

Answer:

x = 21

Step-by-step explanation:

The sum the the interior angles of a triangle is 180°.

We know that the three angles of the triangle is 100°, x° - 4, and 3x°.

The sum of 100°, x° - 4, and 3x° must equal 180°. We can turn this into the equation:

100 + x - 4 + 3x = 180

(I got rid of the degree signs because they are not necessary when finding x.)

Now, to find the value of x, we would have to solve for x in the equation 100 + x - 4 + 3x = 180.

100 + x - 4 + 3x = 180

Subtract 100 from both sides to get rid of the 100 on the left side.

x - 4 + 3x = 180 - 100

Simplify.

x - 4 + 3x = 80

Add 4 from both sides to get rid of the -4 on the left side.

x + 3x = 80 + 4

Simplify and combine like terms.

4x = 84

Divide 4 from both sides to get rid of the coefficient of 4 on the left side.

x = 84/4

Simply.

x = 21

The value of x would be 21.

x = 21

I hope you find this helpful. :)

7 0
3 years ago
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