Total angle sum will always equal 360 degrees. Due to vertical angles theorem, we know the angles opposite the polynomials also equal the polynomials. So, we can double both of them (like solving for perimeter) and sum them to 360.
Thus, 360 = 2(2x + 10) + 2(x+ 5)
360 = 2(2x + 10 + x + 5)
360 = 2(3x + 15)
180 = 3x + 15
165 = 3x
x = 55
Answer/Step-by-step explanation:
1.
; 3
Let's solve for a.
(subtraction property of equality)

(division property of equality)


Therefore, 3 is a solution to 9 = 2a + 3
2.
; 7
(- × - = +)
(Subtraction property of equality)

(division property of equality)

Therefore, 7 is not a solution of 
3.
; 1
Therefore, 1 is a solution of
.
Answer: 0.375
Step-by-step explanation:
Hey there! If you have any questions feel free to leave them in the comments below.
To find the answer you would divide the numerator by the denominator.
would be equal to 0.375
~I hope I helped you :)~
Answer:
2,850
Step-by-step explanation:
4.25 x 9 = 38.25
4.25 x 13 = 55.25
4.25 x 12 = 51
13.70 x 92 = 1260.4
3.28 x 130 = 426.4
8.06 x 126 = 1015.56
all totals would equal 2,846.86, which to the nearest would be $2,850