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seropon [69]
3 years ago
15

Lines m and n are parallel. find the value of x. A. 15 B. 20 C. 65 D. 115

Mathematics
2 answers:
torisob [31]3 years ago
6 0

Answer:

Option B, x = 20

Step-by-step explanation:

<u>Step 1:  Make an equation</u>

The values of 65 degrees and (3x + 5) are equal.

65 = 3x + 5

<u>Step 2:  Subtract 5 from both sides</u>

65 - 5 = 3x + 5 - 5

60 = 3x

<u>Step 3:  Divide both sides by 3</u>

60 / 3 = 3x / 3

<em>20 = x</em>

<em />

Answer:  Option B, x = 20

Andrews [41]3 years ago
6 0

The angle 65° is the same as the angle (3x + 5)° because their parallel.

We can write this as (3x + 5) = 65

Now, solve for x.

3x + 5 = 65

3x + 5 - 5 = 65 - 5

3x = 60

3x/3 = 60/3

x = 20 (Option B)

Best of Luck!

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