<span>180(n-2) = 5400
180(n-2/180 = 5400/180
n-2 = 30
n = 30 + 2
n = 32</span>
Answer:
$24.75
Step-by-step explanation:
Let's first add up all the costs:
Since they split it, let's divide that by 2:
Thus, they both spent $24.75.
Answer:
x=32, y=36, and z=25
Step-by-step explanation:
There are only two sums the equations can all add up to, 67 degrees and 113 degrees. I know that to the equation with x is equal to 67 degrees.
2x+3=67
2x=64 (subtract 3)
x=32 (divide by 2)
Now to find the measurement of the other angle, we subtract 180 and 67 since the measurement of a line is 180 degrees.
180-67=113
The equations of y and z are both equal to 113.
3y+5=113 4z+13=113
3y=108 (subtract 5) 4z=100 (subtract 13)
y=36 (divide by 3) z=25 (divide by 4)
Answer:
Step-by-step explanation:
Combine
Combine the bottom, too.
Apply the fraction rule
Cancel
Therefore,
Answer:
121
Step-by-step explanation:
Number of sides = n = 7
Sum of all the interior angles = (n -2)*180 = (7-2) *180
= 5 *180
= 900
x + 125 + 119 +117 +145 + 133 + 140 = 900
x + 779 = 900
x = 900 - 779
x = 121