D at the end that’s how I learned it
Answer:
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Step-by-step explanation:cghctf
Answer: A. 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.
System A :
-x - 2y = 7 ..........(1)
5x - 6y = -3 ..........(2)
If we multiply the first equation by 5, then we will get :
5(- x - 2y) = 5(7)
⇒ - 5x - 10y = 35 ........... (3)
Now the Sum of equation (2) and equation (3) is:
⇒ Sum :
Now if we replace the second equation in system A with this , then we will get the system B.
Solution of system B:
First we will take the second equation as there is only one variable 'y'. So, we will solve that equation for 'y'
Now for solving 'x', we will plug y= -2 into the first equation
So, the solution of system B is (-3, -2), that means the solution of both systems are same.
Step-by-step explanation:
Answer:
- 56 - 7k
Step-by-step explanation:
Given
- 7(8 + k)
Each term in the parenthesis is multiplied by - 7
= (- 7 × 8) + (- 7 × k)
= - 56 + (- 7k)
= - 56 - 7k
Answer: Well, It cannot be 1/8, 1/3, 1/2. Because, There are 4 pie-like shapes. 2 has 1/4 chance of getting picked. Which means. the answer is 1/4
Step-by-step explanation: