This is a lot of calculation.
So we know that the sum of angles for any heptagon is 900, because heptagon can be divided into five non-overlapping triangles and sum of angles of each triangle is 180.
Now you just add up all angles and simplify the equation:
900 = (6x - 8) + 120 + (7x - 64) + (5x - 4) + 135 + (3x + 31) + (4x + 15)
900 = <span>25x + 225
Now it's just regular algebra equation. You can solve for x:
675 = 25x
x = </span>27
So the value of x is 27
Answer:
Step-by-step explanation:
18 - 7p = ?
The equation that relates x and y :
y = kx , where k is the proportionality constant.
For given question,
y varies directly as x
Also, y= 12.4 when x= 4
So, for x = 1 the value y is,
y = 12.4/4
y = 3.1
As y is directly proportional to x, the equation that relates x and y is,
y = kx
where k is the proportionality constant.
We know that when two values or quantities are directly proportional to each other then one value decreases at the same rate that the other increases.
Therefore, the equation that relates x and y :
y = kx , where k is the proportionality constant
Learn more about the directly proportional here:
brainly.com/question/2548537
#SPJ4
Answer:
304/9
Step-by-step explanation:
34+4/9w when w=-0.5
34+4/9(-0.5)
34+4/9(-1/2)
34+(-4/18)
34+(-2/9)
34-2/9
306/9-2/9
304/9
