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2 years ago

Solve for x. please help asap we have a test on these tomorrow and i have no idea what’s going on.

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

8 0

Answer:

X = 2

Step-by-step explanation:

As the lines are perpendicular...

90 = 43 + 2x + 7

Solve for x by making x the subject.

90 - 43 - 7 = 2x

40 = 2x

40/2 = x

20 = x

therefore, x = 2

lyudmila [28]2 years ago

3 0

Answer:

x = 20°

Step-by-step explanation:

You know the horizontal line is 180°. If the left side of the horizontal line is 90° (right angle), then the right side of the horizontal line should be 90° too. (180° - 90° = 90°)

Thus, 90° = 43° + 2x + 7°

2x = 90° - 43° - 7°

= 40°

x = 40° ÷ 2

x = 20°

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