Answer:
C.
Step-by-step explanation:
First, call the unknown angle x.
Use the Exterior Angle Theorem:
140 = 45 + x
x = 95°
In order to use the elimination<span> method, you have to create variables that have the same coefficient—then you can eliminate them. Multiply the top </span>equation<span> by 5. Next add the</span>equations<span>, and </span>solve<span> for y. Substitute y = 10 into one of the original </span>equations<span> to find x</span>
-10 = -3x - 82
3x = -82 + 10
3x = -72
x = -24
hope it helps
Hey, 25equivelv!
If you know how to multiply a fraction, you will be able to divide it as well. If you do not know how to multiply a fraction, look it up or message me.
I say that if you know how to multiply fractions you know how to divide them because dividing is basically multiplication backwards, so in fraction terms, it's multiplying by the reciprocal. If you don't know what that is, multiplying by the reciprocal is that same as flipping the second fraction and multiplying.
Watch this youtube video for more: https://www.youtube.com/watch?v=q4vEI4mk8g0
Hope I helped!
~Olivia
