Answer:
The system of equations is
![x+y=15](https://tex.z-dn.net/?f=x%2By%3D15)
Step-by-step explanation:
Let
x------> the number of videos of new releases
y-----> the number of classics videos
we know that
------> equation A
------> equation B
Using a graphing tool
Solve the system of equations
Remember that the solution of the system of equations is the intersection point both graphs
The intersection point is ![(4,11)](https://tex.z-dn.net/?f=%284%2C11%29)
see the attached figure
therefore
the number of videos of new releases is ![4](https://tex.z-dn.net/?f=4)
the number of classics videos is ![11](https://tex.z-dn.net/?f=11)
Answer:
![$19=r$](https://tex.z-dn.net/?f=%2419%3Dr%24)
Step-by-step explanation:
![$19-17r=-16r$](https://tex.z-dn.net/?f=%2419-17r%3D-16r%24)
Add 17r to both sides:
![$19-17r+17r=-16r+17r$](https://tex.z-dn.net/?f=%2419-17r%2B17r%3D-16r%2B17r%24)
![$19=-16r+17r$](https://tex.z-dn.net/?f=%2419%3D-16r%2B17r%24)
![$19=r$](https://tex.z-dn.net/?f=%2419%3Dr%24)
22 oz+ 10 oz+ 16 oz= 48 oz.
We know that 1 oz= 0.0625 pound.
48 oz* (0.0625 pound/ 1 oz)= 3 pounds.
The final answer is 3 pounds~
The LCM of 9 and 12 is 36.
I hope this helps, and have a good night and life! :D