Just use an online calculator! i promise you they work better than this.
Answer:
We conclude that:
- The number of people who ordered the chicken dinner = 1
- The number of people who ordered the steak dinner = 5
Step-by-step explanation:
Given that
- Some order the chicken dinner for $14
- some order the steak dinner for $17.
- Let 'n' be the number of people who ordered the chicken dinner.
- Let '6-n' be the number of people who ordered the steak dinner.
Thus, the equation becomes
![14n + 17(6-n) = 99](https://tex.z-dn.net/?f=14n%20%2B%2017%286-n%29%20%3D%2099)
![14n + 102 - 17n = 99](https://tex.z-dn.net/?f=14n%20%2B%20102%20-%2017n%20%3D%2099)
![-3n = 99 - 102](https://tex.z-dn.net/?f=-3n%20%3D%2099%20-%20102)
![-3n = -3](https://tex.z-dn.net/?f=-3n%20%3D%20-3)
Divide both sides by -3
![n = 1](https://tex.z-dn.net/?f=n%20%3D%201)
and
![6-n = 6-1 = 5](https://tex.z-dn.net/?f=6-n%20%3D%206-1%20%3D%205)
Therefore, we conclude that:
- The number of people who ordered the chicken dinner = 1
- The number of people who ordered the steak dinner = 5
15/3 = 5
5 * 2 = 10
There are 15 boys and 10 girls in the classroom.
Answer:
No solution
Step-by-step explanation:
Use substitution to find the value of x:
-2(2x+6)+4x=12
-4x-12+4x=12
-12=12
No solution found.