Answer: A
Step-by-step explanation:
r = j + 3
We subtitube r to find j,
r = 9 j = 9 + 3 = 12
r = 15 j = 15 + 3 =18
r = 21 j = 21 + 3 = 24
And we found A as answes.
Answer:
x = 15
y = 90
Step-by-step explanation:
Step 1: Find <em>x</em>
We use Definition of Supplementary Angles
9x + 3x = 180
12x = 180
x = 15
Step 2: Find <em>y</em>
All angles in a triangle add up to 180°
3(15) + 3(15) + y = 180
45 + 45 + y = 180
90 + y = 180
y = 90°
The answer is w+4.
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1. 2(3x-7)+18=10
2. 6x-14+18=10
3. 6x+4=10
4. 6x+4-4=10-4
5. 6x=6
6. 6x/6=6/6
7. x=1