Answer:
8
Step-by-step explanation:
Answer:
8 lbs 5 oz
Step-by-step explanation:
When you add 3 lbs, 2 lbs, and 2 lbs you get 7 lbs.
There are 16 oz in a lb. When you add the number of oz you get 21 oz which is the same as 1 lb and 5 oz.
you then add 7 lbs to 1 lb and 5 oz and get 8 lbs and 5 oz.
Answer:
9. x=-6, y=0
10. x=-9, y=-10
11. x=3, y=-1
Step-by-step explanation:
![2x-9y=-12\\3x+18y=-18](https://tex.z-dn.net/?f=2x-9y%3D-12%5C%5C3x%2B18y%3D-18)
Multiply the first equation by 2.
![4x-18y=-24\\3x+18y=-18](https://tex.z-dn.net/?f=4x-18y%3D-24%5C%5C3x%2B18y%3D-18)
Add the equations.
![7x=-42](https://tex.z-dn.net/?f=7x%3D-42)
![x=-6](https://tex.z-dn.net/?f=x%3D-6)
We figured out x now we have to figure out y. To figure out y plug in x into any equation.
![2(-6)-9y=-12](https://tex.z-dn.net/?f=2%28-6%29-9y%3D-12)
![-12-9y=-12](https://tex.z-dn.net/?f=-12-9y%3D-12)
![-9y=0](https://tex.z-dn.net/?f=-9y%3D0)
![y=0](https://tex.z-dn.net/?f=y%3D0)
Your answer is x = -6 and y = 0 for number nine.
![6x+3y=24\\2x+3y=-12](https://tex.z-dn.net/?f=6x%2B3y%3D24%5C%5C2x%2B3y%3D-12)
Change the signs of the second equation becuase 3y and 3y are both positive. We need one of them to be negative.
![6x+3y=24\\-2x-3y=12](https://tex.z-dn.net/?f=6x%2B3y%3D24%5C%5C-2x-3y%3D12)
Add them.
![4x = 36](https://tex.z-dn.net/?f=4x%20%3D%2036)
![x=9](https://tex.z-dn.net/?f=x%3D9)
Now we have to figure out y.
![2(9)+3y=-12](https://tex.z-dn.net/?f=2%289%29%2B3y%3D-12)
![18+3y=-12](https://tex.z-dn.net/?f=18%2B3y%3D-12)
![3y=-30](https://tex.z-dn.net/?f=3y%3D-30)
![y=-10](https://tex.z-dn.net/?f=y%3D-10)
x=-9 and y=-10 is your answer to number ten.
![10x+5y=25\\-7x-3y=-18](https://tex.z-dn.net/?f=10x%2B5y%3D25%5C%5C-7x-3y%3D-18)
![30x+15y=75\\-35x-15y=-90](https://tex.z-dn.net/?f=30x%2B15y%3D75%5C%5C-35x-15y%3D-90)
![-5x=-15](https://tex.z-dn.net/?f=-5x%3D-15)
![x=3](https://tex.z-dn.net/?f=x%3D3)
![-7(3)-3y=-18](https://tex.z-dn.net/?f=-7%283%29-3y%3D-18)
![-21-3y=-18](https://tex.z-dn.net/?f=-21-3y%3D-18)
![-3y=3](https://tex.z-dn.net/?f=-3y%3D3)
![y=-1](https://tex.z-dn.net/?f=y%3D-1)
x=3 and y=-1 is the answer to number eleven. I hope this helps! Let me know if I got anything wrong.
There is a 1/4 chance to pull a non-yellow card
Answer:
false
Step-by-step explanation: