Answer:
5050
Step-by-step explanation:
S=n*(n+1) / 2
S=100 * (100+1) /2 = 50 * 101 = 5050
Answer:
how do you know what the answer is
Step-by-step explanation:
The Coefficient is 2.
The Constant is 4.
The Variable is x.
Answer:
infinite solutions
Step-by-step explanation:
Multiply the first equation by 2 so we don't have fractions.
x = 1/2y - 3 becomes 2x = y - 6
Now substitute the second equation into the y-value of the new equation
2x = (2x + 6) - 6
2x = 2x
x can equal anything. this means there are infinite solutions
Answer: 
Step-by-step explanation:
use the equation 
we know the slope, y, and x, so plug in

