Answer:
2 miles
Step-by-step explanation:
Their combined speed (speed of closure) is 80 mph + 40 mph = 120 mph.
120 mi/h = 120 mi/(60 min) = 2 mi/min
The distance between the trains at the 1-minute mark is ...
(1 min) · (2 mi/min) = 2 mi
They were warned when two miles apart.
Answer:
No solution
Step-by-step explanation:

Lets consider the equation 2.
Here we multiply the LHS and RHS with (-1).

Hence,

When we add the equations we get,

As 0 doesn't equal to -1, answer is d) No solution
Answer:
4 muffins
Step-by-step explanation:
just divide 8 by 2 or see how many times 2 can go into 8.
Given:
Consider the given graph as a reference of the solution.
To find:

Explanation:
By analyzing the graph, we can define the coordinate of vector u and v:
![\[\begin{align} & \vec{u}=(-8,-9)-(0,0)=(-8,-9) \\ & \vec{v}=(3,7)-(0,0)=(3,7)\end{align}\]](https://tex.z-dn.net/?f=%5C%5B%5Cbegin%7Balign%7D%20%26%20%5Cvec%7Bu%7D%3D%28-8%2C-9%29-%280%2C0%29%3D%28-8%2C-9%29%20%5C%5C%20%20%26%20%5Cvec%7Bv%7D%3D%283%2C7%29-%280%2C0%29%3D%283%2C7%29%5Cend%7Balign%7D%5C%5D)
Now, let perform the dot product of two vectors,

Now, perform the required operation,

Final answer:
Hence, the required solution is:
Answer:
A. 6 ounce divide$ 2.22 = 0.37 per ounce
B. 15 ounce divide $ 5.25 = 0.35 per ounce
C. 22 ounce divide $7.92 = 0.36 per ounce
So my answer is Package B which is 15 ounce package $ 5.25