<h3>x = 60</h3><h3>y = 60</h3>
x° + 2y° = 180° ⇒ 2y° = 180° - x°
x° = 60° {three sides of the same lengh, means three angles=60°}
2y° = 180° - 60°
2y° = 120°
y° = 60°
-4r-11=4r+21
Move 4r to the other side
Sign changes from +4r to -4r
-4r-4r-11=4r-4r+21
-4r-4r-11=21
-8r-11=21
Move -11 to the other side
Sign changes from -11 to +11
-8r-11+11=21+11
-8r=21+11
-8r=32
Divide both sides by -8
-8r/-8=32/-8
Answer: r=-4
This expression cannot be simplified, as you cannot add or subtract variables raised to different exponents.
The expected value is to get either a $5 bill or a $10 bill because of it has more of it's kind in the wallet.
Answer:
I'm 75% sure that the answer is A, but not a 100. You might want to wait until you get more answers.
