Sodas+hot dogs = 231
hotdogs* 2 = sodas
substitute,
hotdogs*2 +hotdogs= 231
3*hotdogs = 231
hotdogs = 77
sodas = 154
Answer:

Step-by-step explanation:
Let
x-------> the length side of the rectangle
y------> the width side of the rectangle
we know that
---> equation A
---> equation B (given problem)
substitute equation B in equation A

so
the coordinate of the top-left vertex of the rectangle is equal to

Answer:
-2.6
Step-by-step explanation:
10.9 + (-15.6) becomes 10.9 - 15.6 which equals -4.7. The last step is to add the 2.1 to the -4.7: -4.7 + 2.1 = -2.6
Therefore the answer is -2.6
Answer:
i got the same problem
Step-by-step explanation:
Answer:
Slope:
y-intercept: 
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:

Where "m" is the slope and "b" is the y-intercept.
The slope can be found with the following formula:

In this case you can say that:

Knowing this values you can substitute them into the formula and then evaluate, in order to find the slope. This is:

By definition, the line intersects the y-axis when the value of "x" is 0.
Notice in the table that when
, 
Therefore, the y-intercept is:
