Answer:
the mean is 83.6
Step-by-step explanation:
answer:
measure of angle 1 is 130°.
step by step:
angle 8 = 50
angle 6 = 50 (because of vertical angles)
angle 4 = 50 (because fo alternate interior angles)
therefore, angle 1 = 130 (because of linear pairs)
angle 1 and angle 4 add up to 180°
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<span>3n-8+2(5n+3)=8n+5+4n first I will do the multiplication
3n-8+10n+6=8n+5+4n Now I will simplify
13n -2 = 12n +5 Now I will add 2 to both sides
13n = 12n + 7 then I subtract 12n from both sides
n = 7</span>
