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castortr0y [4]
3 years ago
5

Two angles are complementary. The measure of ∠ABC is x° and the measure of ∠DBC is (3x + 10)°. What is the value of x?

Mathematics
2 answers:
serg [7]3 years ago
5 0
X+3x+10=90
4x=90-10
4x=80
x=20
Licemer1 [7]3 years ago
3 0

Answer: x = 20

Step-by-step explanation:

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<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ The correct option would be D. 3g = 21

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sukhopar [10]

Answer:

Step-by-step explanation:

Pyramid height should be 14

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4 0
3 years ago
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sergey [27]

Answer:

d = -16

Step-by-step explanation:

Step 1: Write equation

89 = -5d + 9

Step 2: Solve for <em>d</em>

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Step 3: Check

<em>Plug in x to verify if it's a solution.</em>

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