Answer:
answer B: (2,-2)
Step-by-step explanation:
First, write the equations on top of each other:

Then, multiply the the second equation by 2 so that we can use elimination of the y-variable:

Next, use elimination to find the value of "x":

So, your x-value is 2.
Now, substitute your x-value into one of your equations, let's take the second equation, 2x-y=6:

Your y-value is -2.
With all your information gathered, you find that the solution to this system of equation is (2,-2).
Answer:
29.98332
Step-by-step explanation:
Answer:
x = 4
Step-by-step explanation:
A = hb/2
4 = 2(x)/2
4 = x
Answer:
52.25 MPH
Step-by-step explanation:
Using the formula given D=RT we simply plug in values,
313.5=6R
313.5/6=R
52.25=R