Answer:
x=20°
Step-by-step explanation:
x° + 100° + 3x° = 180° => 4x°+100°=180° => 4x=180°-100°=80° => x=80° : 4 = 20° => x=20°
Hey!
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Steps To Solve:
x - 5y = −15 solve for y
~Isolate y by subtracting x to both sides
x - 5y - x = -15 - x
~Simplify
5y = -15 - x
~Divide 5 to each side
5y/5 = -15/5 - x/5
~Simplify
y = -3 - 1/5x
~Put into slope-intercept form
y = -1/5x + 3
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Hence, the answer is 
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Hope This Helped! Good Luck!
9.63 as a fraction is 9 63/100
Answer:

Step-by-step explanation:
we know that
Applying the Pythagoras Theorem

In this problem we have that


substitute




Answer:
x=6 y=-1
Step-by-step explanation:
Hope this helps