If it is $4.00 per gallon then we need to find the price of 7 gallons.
7 * 4.00 = 28
so it costs $28 to travel 350 miles.
no to find the cost per mile, we need to divide.
350 / 28 = 12.5
so the cost to run the car per mile is $12.50
First equation is
v=-3
And the second equation is
v=6
If together it is
v=-3,6
![10 \frac{2}{3} ( \frac{31}{8})](https://tex.z-dn.net/?f=10%20%5Cfrac%7B2%7D%7B3%7D%20%28%20%5Cfrac%7B31%7D%7B8%7D%29%20)
can be changed into this equation:
![\frac{32}{3}( \frac{31}{8} )](https://tex.z-dn.net/?f=%20%5Cfrac%7B32%7D%7B3%7D%28%20%5Cfrac%7B31%7D%7B8%7D%20%20%29)
The 32 and 8 have a common factor of 8 and can be simplified to become this equation:
![\frac{4}{3} ( \frac{31}{1})](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B3%7D%20%28%20%5Cfrac%7B31%7D%7B1%7D%29%20)
Now multiply across to get
![\frac{124}{3}](https://tex.z-dn.net/?f=%20%5Cfrac%7B124%7D%7B3%7D%20)
which then simplifies to
![41 \frac{1}{3}](https://tex.z-dn.net/?f=41%20%5Cfrac%7B1%7D%7B3%7D%20)
which as a decimal is 41.333 (repeating 3s). Nearest whole number is 41.
Your answer is
41
Euler's formula is given by:
C + V = A + 2
Where,
C: number of faces
V: number of vertices
A: number of edges.
Clearing A we have:
A = C + V-2
Substituting values:
A = 21 + 14-2
A = 33
Answer:
the missing number is:
C.33
Hello!
![\large\boxed{\text{ slope = -3}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Ctext%7B%20slope%20%3D%20-3%7D%7D)
Use the slope formula to solve for the slope of the line (m):
![m = \frac{y^{2} -y^{1} }{x^{2} -x^{1} }](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7By%5E%7B2%7D%20-y%5E%7B1%7D%20%7D%7Bx%5E%7B2%7D%20-x%5E%7B1%7D%20%7D)
We can plug in the points (0, 4) and (1, 1) to solve:
![m = \frac{1-4}{1-0}= \frac{-3}{1} = -3](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B1-4%7D%7B1-0%7D%3D%20%5Cfrac%7B-3%7D%7B1%7D%20%20%3D%20-3)
Therefore, the slope of the line is -3.