Please refer to my image where it shows my work as I’m explaining.
Okay, for system 1:
1. I am using the elimination method to solve. So I check if all the terms are lined up and if any are the same. I found that 2X are common in both equations.
2. The goal is to “eliminate” the term hence the name. So I can choose to add or subtract. I chose subtraction because 2 - 2 equals 0 which is our goal. Solve for the rest of the terms. This will lead to getting y =4. Refer to image for the work.
3. Last step to to find the X value. We do this by picking any of the given equations,then substitute y with 4 and solve to eventually get x = 10. Refer to image for the work.
FOR SYSTEM 2:
1. Again, I am using the elimination method to solve. I noticed that NONE of the terms are in common so I will have to intervene. You can chose any term to create a match with but I chose Y since it was the one I could use the smallest number to multiply with. When multiplying, DONT just multiply Y, multiply ALL the terms in the equation or else everything will crash.
2. Now that I have terms in common I can choose to add or subtract. I chose subtraction because 2-2 equals zero which is what we want. Solve look at image for my process which lead to X = -8
3. Last step is to find the value of Y. Chose any of the given equations in system 2 then substitute x with -8. Refer to image to see process. It lead to y = 20
To check the validity of the answers, substitute the x and y values into both equations both side of the equal side should have the same number. Hope that helped!
Answer:
74.8 cm^2
Step-by-step explanation:
The figure is a parallelogram with base of 11cm and height of 6.8cm . To find the area, we multiply the base by the height to get 11 × 6.8 = 74.8 cm^2
Step-by-step explanation:
<em>-</em><em>2</em><em>/</em><em>3</em><em> </em><em>+</em><em> </em><em>8</em><em>/</em><em>3</em>
<em>your</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>6</em><em>/</em><em>3</em><em> </em>
<em>addit</em><em>ive</em><em> </em><em>inverse</em><em> </em><em>is</em><em> </em><em>3</em><em>/</em><em>6</em>
<em>by</em><em> </em><em>cancell</em><em>ed</em><em> </em><em>it </em><em>gives</em><em> </em><em>1</em><em>/</em><em>2</em>
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>u</em>
Answer:
C: 27
Step-by-step explanation:
Dr. Pepper: 36 / 2= 18
Sprite: 36 / 4= 9
Coke: 36 / 4=9
Add aswer for Dr. Pepper and Sprite
18+9=27
X^2 - x - 12
Hope this helps!