Answer:
D
Step-by-step explanation:
First, let us figure out what is graphed and then manipulate each answer to try to match it.
The one with a positive slope is

The one with the negative slope is

Now that we have our graphed system of inequalities, we can try to match them to an answer.
A. while the x-2 is the same, the other does not have an x, so it cannot match.
B. The second inequality has the wrong sign, so it is impossible for this to be our answer.
C. When each of these are solved for y, you get
. Neither of these match so this cannot be correct.
D. When the first inequality is solved you get 
When the second inequality is solved you get 
As both of these answers match our graphed inequalities, D is the correct answer.
Let the number be x
The sum of 2 equal numbers is simply x+x or 2x.
Answer:
total number of hamburger =312
total number of cheeseburger=2x312
=624
Step-by-step explanation:
the answer is 624
-3x = -3 because you would multiply one of the equations by -1 to eliminate y.
Answer:
-7 < -3 because -7 is located to the left of -3 on a number line.
Step-by-step explanation:
This is because -7 is on the left of the -3. In negatives -3 is greater than -7. If it was positive then 7 would be greater than 3. So the answer is A. -7 < -3 because -7 is located to the left of -3 on a number line