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
Answer:
13
Step-by-step explanation:
First, change 4 1/3 into an improper fraction. 4 1/3= 13/3
Next, you multiply the numerators by the numerators and the denominators by the denominators. 13*3=39 (numerators) 3*1=3 (denominators)
39/3 = 13/1 = 13
Answer:
201.24
Step-by-step explanation:
75%x115=86.25
86.25+ 115=201.25
Formula for Perimeter of Rectangle:
P = 2(L + W)
Plug in 160:
160 = 2(L + W)
L = 4W
So we can plug in '4W' for 'L' in the first equation.
<span>160 = 2(L + W)
160 = 2(4W + W)
Combine like terms:
160 = 2(5W)
160 = 10W
Divide 10 to both sides:
W = 16
Now we can plug this back into any of the two equations to find the length.
L = 4W
L = 4(16)
L = 64
So the width is 16, and the length is 64.</span>