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mrs_skeptik [129]
3 years ago
14

Solve algebraically y = - x - 2 y = - 2x

Mathematics
1 answer:
Alchen [17]3 years ago
5 0

Solving algebraically we get x=2 and y=-4

Step-by-step explanation:

We need to solve the equations:

y=-x-2\\y=-2x

Solving and finding value of x and y

Let:

y=-x-2\,\,eq(1)\\y=-2x\,\,eq(2)

Subtract both equations

y=-x-2\\y=-2x\\-\,\,\,\,+\\------\\0=x-2\\x=2

Putting value of x in eq(1) and find value of y:

y=-x-2\\y=-2-2\\y=-4

So, value of y is -4

Solving algebraically we get x=2 and y=-4

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

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Vladimir buys 1.20 pounds of Skittles, 312 pounds of M&Ms, and 5.2 pounds of pretzels. If the candy cost $1.20 a pound and t
BlackZzzverrR [31]

Answer: $10.90

Step-by-step explanation:

Skittles-1.44

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Not sure if its a typo, thats if theres 3.12lbs of of M&M's

The answer is theres 312 M&M's is 374.4

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3 years ago
There are 156 sixth graders and 7 sixth grade teachers.There are 120 fifth graders and 5 fifth grade teachers.Which grade has lo
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Fifth grade has 24 students per each teacher.
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Sixth grade is lower.
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A circle is shown. Secants S V and T V intersect at point V outside of the circle. Secant S V intersects the circle at point W.
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<u>Given</u>:

Secants S V and T V intersect at point V outside of the circle. Secant S V intersects the circle at point W. Secant T V intersects the circle at point U.

The length of TU is (y - 2).

The length of UV is 8.

The length of SW is (y + 4)

The length of WV is 6.

We need to determine the length of line segment SV.

<u>Value of y:</u>

The value of y can be determined using the intersecting secant theorem.

Applying, the theorem, we get;

WV \times SV=UV \times TV

Substituting the values, we have;

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Thus, the value of y is 6.

<u>Length of SV:</u>

The length of SV is given by

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SV=16

Thus, the length of SV is 16 units.

Hence, Option D is the correct answer.

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