To get system B, the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 5. The solution to system B will be the same as the solution to system A.
<h3>How to find the relationship between two equations?</h3>
System A equations:
-x - 2y = 7 ------ (1)
5x - 6y = -3 ------(2)
We multiply the first equation by 5, to get :
-5x - 10y = 35 -----(3)
The sum of equation (2) and equation (3) gives:
-16y = 32
y = 32/-16
y = -2
Thus, solution of system B is;
-x - 2(-2) = 7
-x + 4 = 7
x = -3
So, the solution of system B is (-3, -2), that means the solution of both systems are same.
Read more about equations at; brainly.com/question/2972832
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Answer:
10y + 113
Step-by-step explanation:
-4 - 5y + 12 + 15(7 + y)
first distribute the 15 to the 7 and y to get -4 -5y + 12 + 105 + 15y
then combine like terms to get 10y + 113
hope this helps
Since your question is non-specific here are two sensible cases:
$823 at 9.23% ANNUAL COMPOUND interest after 4 years:
$823 (1.0923)^4 = $1171.57
$823 at 9.23% defined as interest over a period of four years (4-year-interest):
$823 * 1.0923 = $898.96
Answer:
13
Step-by-step explanation:
Ur answer is 6 (20+20+20+20+20+20+21+21+21+21+21+21+21+21+21+21+21+21=372) and they need at least 362 hope this helps I'm pretty sure this is right sorry if it's wrong but it seems right to me
