First, we need to get the slope of the equation of the train tracks. We can transform the given equation into the slope-intercept form.
4x +2y = 16
y = -2x +8
The slope of the equation is -2.
A perpendicular line will have the same slope but the opposite sign.
So, the slope of the line of the train crossing is 2. Since, it will pass through the point (8,15), the slope-intercept form can also be used to solve for the equation.
y = mx + b
The slope is 2, so m=2. We solve b by substituting the coordinates.
15 = 2(8) +b
b = -11
The equation is now,
y = -2x - 11
Or it can also be expresses as:
2x - y = 11
Answer:
y = 4
Step-by-step explanation:
-12= -3y
Divide both sides of the equation by
the same term
Simplify
Divide the numbers
Cancel terms that are in both the
merator and denominator
Move the variable to the left
y = 4
Answer:
-7
Step-by-step explanation:
-9q = 63
q= 63/-9 = -7
Answer:
3
Step-by-step explanation:
9-7=2
2*3=6
6*2=12
75/5=15
15-12=3
The car costs $7500
7500-3000=4500 to be paid in monthly payments
4500/36=125
Ryan paid 125 per month
