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GenaCL600 [577]
3 years ago
14

The measures of two supplementary angles are (4x + 8) and (6x + 3)º.

Mathematics
2 answers:
Illusion [34]3 years ago
7 0

Step-by-step explanation:

A supplementary angle is an angle that is 180 degrees. We are given two angles that add up to 180, but we need to solve for x first.

The first step is to solve both angles. We know that both angles added together are supplementary, so they are equal to 180.

4x + 8 = unknown angle

6x + 3 = unknown angle

(4x + 8) + (6x + 3) = 180

Because we know a supplementary angle is 180 degrees, we can solve for x to find both angles.

Solve for x.

(4x + 8) + (6x + 3) = 180

10x + 11 = 180

10x = 169

x = 16.9

Now, we know the value of x, so we plug in x for both angles to determine which angle is smaller.

4x + 8

4(16.9) + 8

67.6 + 8 = 75.6 degrees

and the other angle

6x + 3

6(16.9) + 3

101.4 + 3 = 104.4 degrees

Now we know that the smaller angle is 75.6 degrees.

Also, to make sure the math is correct, when plugging in both numbers after finding x, they should add to 180.

75.6 + 104.4 = 180 so we know they are supplementary for sure.

Good luck!

klio [65]3 years ago
7 0

Answer:

OD. 75.6°

Step-by-step explanation:

Given:

Two supplementary angles (4x + 8) and (6x + 3)

Solve x :

(4x + 8) + (6x + 3) = 180

4x + 8 + 6x + 3 = 180

10x + 11 = 180

10x = 169

x = 16.9

Find the two angles:

4x + 8 = 4(16.9) + 8 = 75.6°

6x + 3 = 6(16.9) + 3 = 104.4°

smaller angle = 75.6°

Check:

75.6° + 104.4° = 180°

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5 0
3 years ago
Write the expression: the sum of the quantity h and 3 divided by 6.
prohojiy [21]
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3 years ago
Lines A and B are parallel<br>A<br>1/2<br>3/125°<br>B<br>5/6<br>7/8<br>m 6 = [ ?] ​
USPshnik [31]
<h3>Answer:   55</h3>

==============================================

The 125 degree angle and angle 6 are supplementary. This is because of the same side interior angles theorem.

Let x be the measure of angle 6. Add this to 125, set the sum equal to 180, and solve for x.

x+125 = 180

x = 180-125

x = 55

------------

Or you could approach it this way:

y = measure of angle 2

y+125 = 180

y = 55

angle 6 = angle 2 (corresponding angles)

angle 6 = 55 degrees

-------------

Yet another way you could solve:

z = measure of angle 3

z+125 = 180

z = 55

angle 6 = angle 3 (alternate interior angles)

angle 6 = 55 degrees

A similar approach using alternate interior angles would involve angle 5 = 125, and then noticing that x+125 = 180 solves to x = 55

5 0
2 years ago
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