Answer:
x= 12/7
Step-by-step explanation:
3x+4x=12
Step 1: Simplify both sides of the equation.
3x+4x=12
(3x+4x)=12(Combine Like Terms)
7x=12
7x=12
Step 2: Divide both sides by 7.
7x 7
=
12
7
x=
12
7
12/7
Y = 15 and X = 72°
Explanation = 72 + 108 = 180
Answer:
240 cm
Step-by-step explanation:
10 • 18 = 180
18 - 6 = 12
12 • 5 = 60/2 = 30
12 • 5 = 60/2 = 30
180 + 30 + 30 = 240
Answer:
Perpendicular
Step-by-step explanation:
Parallel lines mean lines that have same slope but since both equations have different slopes which you can check by looking at m-value in y = mx + b. In this case m1 or first slope is -4/3 and m2 or second slope is 3/4.
Perpendicular means that both lines are reciprocal to each other. This means the perpendicular condition is or satisfies 
We have m1 = -4/3 and m2 = 3/4.
Therefore, -4/3 * 3/4 = -1 thus both lines are perpendicular to each other as it satisfies m1m2 = -1 condition.