The mean absolute deviation is A. .7 cars.
First you would do 1.95 * 3 which would equal to 5.85, then you would do 10.00-5.85 which equals to 4.15
Answer: She would receive $4.15 as change if she payed with a $10 bill.
Solution:
y = 2x^2 - 3 ---- equation 1
y = 3x - 1 ------equation 2
Then we get,
2x^2 - 3 = 3x - 1
Now, simplifying the equation, we get
2x^2 - 3x - 3 + 1 = 0
2x^2 - 3x - 2 = 0
After factoring the equation, we get
(2x+1)(x-2) = 0
So, this means
(2x+1) = 0 and (x-2) = 0
From this, we get
x = -1/2 and x = 2
Putting values of x = -1/2 in equation 2
y = 3(-1/2) - 1
y = -2.5
Now, putting value of x = 2 in equation 2
y = 3(2) -1
y = 5
Answer:
C. 15
Step-by-step explanation:
The following proportional can be set-up for the figure given:
![\frac{x + 3}{x} = \frac{10 + 2}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%203%7D%7Bx%7D%20%3D%20%5Cfrac%7B10%20%2B%202%7D%7B10%7D%20)
Solve for x
![\frac{x + 3}{x} = \frac{12}{10}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%203%7D%7Bx%7D%20%3D%20%5Cfrac%7B12%7D%7B10%7D%20)
![\frac{x + 3}{x} = \frac{6}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%2B%203%7D%7Bx%7D%20%3D%20%5Cfrac%7B6%7D%7B5%7D%20)
Cross multiply
![5(x + 3) = x(6)](https://tex.z-dn.net/?f=%205%28x%20%2B%203%29%20%3D%20x%286%29%20)
![5x + 15 = 6x](https://tex.z-dn.net/?f=%205x%20%2B%2015%20%3D%206x%20)
15 = 6x - 5x
15 = x
x = 15