S = 12a
s represent number of student
a represent number of adult
1. b=2.4-4
b= -1.6
2. 1.2g/1.2 = 3.6/1.2
g=3
3. 3.75x/3.75 = 3/3.75
x= 0.8
4. w = -4.1 + 9
w= 4.9
5. p = -7.4 - 8.8
p= -16.2
6. y = 2.9 + 6.9
y = 9.8
7. A= 1.5 - 5.7
A= -4.2
8. V/0.2 * 0.2 = -3.5 * 0.2
V= -0.7
9. Z/9 * 9 = 1.6 * 9
Z= 14.4
10. -9.9t/-9.9 = -9.9/-9.9
t= 1
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Angle sum of a triangle = 180°
Therefore:
Equation No. 1 -
2 ( 2x - 4 ) + 5y = 180°
2 ( 2x - 4 ) + 5 [ ( 2x - 4 ) / 5 ] = 180
4x - 8 + [ 5 ( 2x - 4 ) / 5 ] = 180
4x - 8 + 2x - 4 = 180
4x + 2x = 180 + 8 + 4
6x = 192
x = 192 / 6
x = 32°
Equation No. 2 -
5y = 2x - 4
y = ( 2x - 4 ) / 5
ANSWER:
x = 32°
I guess in this equation we are assuming you are changing flights. So you would add 137.50+92.50+162.50 which equals $392.50