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alisha [4.7K]
3 years ago
15

WILL MARK BRAINEST PLZ HELP! What is the value of x? (With all of the details on how to get it.

Mathematics
1 answer:
klasskru [66]3 years ago
7 0

To find x:

Subtract 10 on both sides.

10 + 2x = 90

-10           -10

Divide 2 on both sides.

2x = 80

---     ---

2        2

This would get x alone.

x = 40

Check:

10 + 2(40) = 90

10 + 80 = 90

90 = 90

The value of x is 40. The angle degree of it is 80 when you multiply 2 by 40.

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Find all angles and pls show steps ​
Ghella [55]

Answer:

Both angles have a measure of 134degrees, y = 27degrees.

Step-by-step explanation:

As per what is given in the problem:

There are 2 parallel lines, both are intersected by a transversal.

Remember the theorem, when two parallel lines are intersected by a transversal, then the alternate exterior angles are congruent.

The is meanse that:

3y + 53 = 7y - 55

Solve using inverse operations:

3y + 53 = 7y - 55

     +55         +55

3y + 108 = 7y

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108 = 4y

/4      /4

27 = y

Now, substitute back in to find the value of the angle:

3y + 53

y = 27

3 ( 27 ) + 53

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Since the angles are alternate exterior, they are congruent, hence both angles have a measure of 134degrees.

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3 years ago
Given the equation square root of quantity 2x plus 8 end quantity equals 6, solve for x and identify if it is an extraneous solu
Alex_Xolod [135]

Answer:

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Step-by-step explanation:

Given equation is:

\sqrt{2x+8}=6

In order to solve the equation both sides will be squared

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Verifying the solution

\sqrt{2(14)+8} = 6\\ \sqrt{28+8} = 6\\\sqrt{36} = 6\\6 = 6

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