Answer:
The worth of car at the start of 2014 = $12000
The value of the car decreased 30% every year.
At start of 2015:
30% of 12000 = \frac{30}{100} \times 12000
100
30
×12000 = 3600
So, the value of the car at start of 2015 = 12000-3600 = $8400.
At start of 2016:
30% of 8400 = \frac{30}{100} \times
8400
100
30
×8400 = 2520
So, the value of the car at start of 2016 = 8400-2520 = $5880.
At start of 2017:
30% of 5880 = \frac{30}{100} \times
5880
100
30
×5880 = 1764
the value of the car at start of 2017 = 5880-1764 = $4116.
So, the value of his car at the start of 2017 is $4116.
The answer is: y = 2/3x - 14
In the given question we are faced with an equation that has two unknown variables. So finding the value of the two variables is not possible as finding the value of two variables needs two equations. Only thing possible is finding an equation for the variable y.
-6x + 2y = 16
2y = 16 + 6x
y = (6x + 16)/2
= 3x + 8
So the value of y that can be found from the given equation is y = 3x + 8. I hope this is enough to make you understand the procedure by which these type of problems can be easily solved.
Answer:
I see no options but they are the same equation. 4(5x+y=4) is 20x+4y=16 which is the second line's equation.
