Answer: room 101 and room 107
Step-by-step explanation:
In room 101, the ratio of boys to girls is 16:12. This is further simplified to its lowest fraction by dividing by 4. It becomes 4:3
In room 104, the ratio of boys to girls is 20:9. This cannot be further simplified to its lowest fraction.
In room 107, the ratio of boys to girls is 12:9. This is further simplified to its lowest fraction by dividing by 3. It becomes 4:3
Therefore, room 101 and room 107 have the same ratio.
Answer:
Here you go now
0.25
or
1/4
Step-by-step explanation:
Hopefully this is correct!
- Unbrand -
The minimum for g(x)=x2-10
36
X= 5 x= -9 y = -10 if this not the answer reverse it
Let
x-------> the first number
y------> the second number
we know that
![x+y=31](https://tex.z-dn.net/?f=%20x%2By%3D31%20)
![x=31-y](https://tex.z-dn.net/?f=%20x%3D31-y%20)
equation ![1](https://tex.z-dn.net/?f=%201%20)
![x*y=234](https://tex.z-dn.net/?f=%20x%2Ay%3D234%20)
equation ![2](https://tex.z-dn.net/?f=%202%20)
substitute equation 1 in equation 2
![(31-y)*y=234\\ 31y-y^{2} =234\\ -y^{2} +31y-234=0](https://tex.z-dn.net/?f=%20%2831-y%29%2Ay%3D234%5C%5C%2031y-y%5E%7B2%7D%20%3D234%5C%5C%20-y%5E%7B2%7D%20%2B31y-234%3D0%20)
using a graph tool-----> to resolve the second order equation
see the attached figure
the solution is
![13 and 18](https://tex.z-dn.net/?f=%2013%20and%2018%20)