Charlidamelio is overrated
Answer:
18/22
Step-by-step explanation:
Data:
Depreciating: The value decrease
Rate: 5% per year
2010: $32,000
2013: $?
Step 1: As depreciating means decrease, the value of the car is decaying
Step 2 and step 3: You use the formula below to find the value of the car after 3 years (as the value is decaying the rate in the formula is substracting)
Final value: F
Principal value: P=32000
rate: r=5
Time in years: n=3 (2013-2010=3)
In 2013 the value of the car is $27,436
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
