Answer: 41 degrees
Step-by-step explanation:
so, we know that a triangle is 180 degrees. since we know that one angle is 80 degrees, we can subtract that from the equation. now, we are trying to find what X is so that we can find the angle. here is how i did it:
i rewrote it and removed the parentheses.
4x + 1 + 4x + 19 = 100
then, i collected like terms and calculated it.
8x + 20 = 100
then, i moved the constant to the right.
8x = 100 - 20
then, i simply calculated it.
8x = 10
solution: x = 10
so, we just insert X into the angle for A. that gets us 4(10) + 1 = angle A
40 + 1 = angle A, hence angle A = 41 degrees.
Answer:
false have a god day!
Step-by-step explanation:
Equivalent means they are equal.
14.1x+b = 4.7(3x-3.5)
Solve for b. First subtract 15.1x to both sides.
b = 4.7(3x-3.5) - 14.1x
You can simplify by distributing the 4.7 and combining like terms.
b = 14.1x - 16.45 - 14.1x
The positive and negative 14.1x cancel each other out.
b = -16.45
