Answer: x = 4, y = 3
<u>Step-by-step explanation:</u>
and 
Using substitution method we get:

Answer:
6 units
Step-by-step explanation:
count 6 units up
Answer:
the number of adult ticket sold is 107 tickets
Step-by-step explanation:
The computation of the number of adult ticket sold is shown below:
Let us assume the number of tickets be x,
So, the adult be x
And for student it would be 3x
Students= 2x
Adults= x
Total = 4x
Now the equation could be
4x = 428
x = 107
This x signifies the adult tickets sold i.e 107
Hence, the number of adult ticket sold is 107 tickets
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Find Slope :
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y = -2/7x + 9
Slope = -2/7
Perpendicular slope= 7/2
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Find y - intercept :
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y = mx + b
y = 7/2 x + b
At (4, -6)
-6 = 7/2 (4) + b
-6 = 14 + b
b = -6 - 14
b = -20
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Form equation :
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y = mx + b
y = 7/2 x - 20
2y = 7x - 40
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Answer: 2y = 7x - 40
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