Answer:
B
Step-by-step explanation:
The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.
To do that, we need to multiply the first equation by 5.
5 (-x − 2y = 7)
-5x − 10y = 35
Add to the second equation. Notice the x terms cancel out.
(-5x − 10y) + (5x − 6y) = 35 + (-3)
-16y = 32
Combining this new equation with the first equation from system A will get us system B.
-x − 2y = 7
-16y = 32
Answer:
42:49
Step-by-step explanation:
6x + 7x = 91
13x = 91
x = 7
6 x 7 = 42
7 x 7 = 49
then 42:49
Answer:
Principal
Step-by-step explanation:
Given


Required
Determine what the given parameters describe
Literally, the principal amount is the starting amount of anything and as seen in the given parameters, the starting amount is the debt which amounts to $500
Taking the options one after the other;
We can conclude that the given parameters do not talk about Interest, Rate of interest and Time constraint;
Hence, D. Principal answers the question.
The given parameters do not relate to interest
Answer:
The answer to your question is: letter C
Step-by-step explanation:
Data
A (-5 , -1)
B (-2, 3)
C (6, -3)
Perimeter = ?
Formula

distance AB 



d = 5
Distance BC 


d = 10
Distance AC 



d = 11.2
Perimeter = 5 + 10 + 11.2
= 15 + 
He Paid $14 each share but lost $6 each share. 14-6= 8..... he sold 100 shares of stock for $8each. 100 divided by 8 =$12.50