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poizon [28]
3 years ago
10

I need to know X for 8 and 10 if u feel like it. PLS

Mathematics
1 answer:
inn [45]3 years ago
6 0

Answer:

8) <em>x</em>=9

10) 23 degrees

Step-by-step explanation:

8) vertical angles are congruent to each other so we can set the expressions as such and solve:

<u>7x</u> + 3 = <u>10x</u> - 24

<u>3</u> = 3x<u> - 24</u>

<u>27</u> = <u>3x</u>

9 = x

10) since the angles are complementary they equal 90 degrees, so we can set the expression like this and solve for <em>x</em>:

<u>12x</u> + 7 + <u>6x</u> - 7 = 90

18x <u>+ 7 - 7</u> = 90

<u>18x</u> = <u>90</u>

x = 5

now we plug it back into the expression equivalent to the measure of angle O:

<u>6(5)</u> -7

<u>30 - 7</u>

23 degrees

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Step-by-step explanation:

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