1. X=2+1/2y+1/2z
2. X=-1+2y+z
3. X=16/3-1/3y-1/3z
First we need to know both the formula of A and B.
The formula of A is
C = 5 + 0.25p
with C representing total cost and p representing the amount of checks.
The formula of B is
C = 6 + 0.15p
with C representing total cost and p representing the amount of checks.
To find the point where A and B cost the same, we solve the following equation:
5 + 0.25p = 6 + 0.15p
Collecting terms gives us
-1 = -0.1p
Now we have to divide by -0.1 and we get.
10 = p
p = 10
So our answer: after 10 checks both accounts cost the same amount of money. Answer A.
Answer:
B(-1, 0)
Step-by-step explanation:
coordinates of midpoint p(x,y) are calculated as
---------- (1)
-----------(2)
Here 
and 
<u>Using equation (1)</u>
<u />
<u />
<u>Using equation (2)</u>
<u />
<u />
Answer:
first choice is the correct answer
Answer:
5/1
Step-by-step explanation:
