Answer:
x is equal to 30
<ABC is equal to 100°
<DBC is equal to 80°
Step-by-step explanation:
3x +10 +2x +20 =180
5x = 180 - 10- 20
5x = 150, divide both sides by 5
x is equal to 30
<ABC = 3x + 10 = 3 × 30 + 10 = 100°
<DBC = 180 - <ABC = 180 - 100 = 80°
A
X-54=20
+54. +54
You add 54 to both sides
Then you end up with
X = 74
So the letter is on page 74.
Answer:
I type a little weird sometimes... try your best to read it.
Step-by-step explanation:
3
9
=
7
−
2
(
5
−
3
)
39
=
7
x
−
2
(
5
x
−
3
)
39=7x−2(5x−3)
3
9
=
7
−
1
0
+
6
(-1,2)
This should help for future problems
<span>https://www.mathportal.org/calculators/analytic-geometry/triangle-calculator.php</span>
