For two adjacent angles with measures x° and (x+30)° that make up a 90° angle, what is x ?(1 point)

Responses

60
60

15
15

30
30

20

1 answer

If two adjacent angles make up a 90° angle, then their sum must be equal to 90°.

So, we can set up the following equation:

x + (x+30) = 90

Combining like terms, we have:

2x + 30 = 90

Subtracting 30 from both sides, we get:

2x = 60

Dividing both sides by 2, we find:

x = 30

Therefore, x is equal to 30°.
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