Answer:Area)=12x(Base)x(Height)Step-by-step explanation:
Answer:
A=27/4 B=2.25
Step-by-step explanation:
4 and 1/2 also equals 18/4.
18/4+1/2(18/4)=18/4+9/4
18+9=27
Answer is 27/4
B)=4.5/2=2.25
Answer:
2x^2
Step-by-step explanation:
Greetings!
"<span>Six times a number increased by 20 is four less than eight times the number. Find the number."...
This would be, as an equation:
</span>
![6x+20=8x-4](https://tex.z-dn.net/?f=6x%2B20%3D8x-4)
Solve:
Add
4 and
-6x to both sides.
![(6x+20)+4+(-6x)=(8x-4)+4+(-6x)](https://tex.z-dn.net/?f=%286x%2B20%29%2B4%2B%28-6x%29%3D%288x-4%29%2B4%2B%28-6x%29)
Simplify.
![24=2x](https://tex.z-dn.net/?f=24%3D2x)
Divide both sides by
2.
![(24)/2=(2x)/2](https://tex.z-dn.net/?f=%2824%29%2F2%3D%282x%29%2F2)
Simplify.
![12=x](https://tex.z-dn.net/?f=12%3Dx)
![x=12](https://tex.z-dn.net/?f=x%3D12)
<span>
x=12Hope this helps.
-Benjamin
</span>