Vertically opposite angles are congruent to eachother so:
3Y+20=5Y-16
-5Y -20 -5Y -20
-2Y = -36
=-36/-2
Y= 18
B is the answer
Answer:
The value of x = 15
Hence,
- BC = 2x+1 = 2(15)+1 = 30+1 = 31 in
- AC = x-3 = 15 - 3 = 12 in
Step-by-step explanation:
We know that the perimeter of a triangle is the sum of all the sides of a triangle.
Given
Perimeter = 58 in
AB = x
BC = 2x+1
AC = x-3
so the equation becomes
Perimeter = AB + BC + AC
58 = x + 2x+1 + x-3
58 = 4x - 2
4x = 58+2
4x = 60
4x/4 = 60/4
x = 15
Thus, the value of x = 15
Hence,
- BC = 2x+1 = 2(15)+1 = 30+1 = 31 in
- AC = x-3 = 15 - 3 = 12 in
VERIFICATION
Perimeter = AB + BC + AC
58 = 15+31+12
58 = 58
Replace x in the equation and see which one equals the y values:
The answer is f(x) = 2x - 1
Answer:
x = 3y + 1
Step-by-step explanation:
You need to find the relationship between x and y before finding the y-intercept.
0-(-1) = 1
1-0 = 1
2-1 = 1
1-(-2) = 3
4-1 = 3
7-4 = 3
As x increases by 1, y increases by 3.
At x = 0, y is already 1. Thus:
x = 3y + 1