12819=
Yx ..................................
2x+x-7+3x-20=87cm
6x-27=87
6x=114
x=19
Therefore the sides are:12cm, 38cm, and 37cm
Answer:
Step-by-step explanation:
Area is half base × height
If area = 140 and height = 20 inches
base =140 ÷ 20 = 7 × 2 = 14 inches
<u><em>Answer: </em></u>
<u><em>=31 *The answer shouldn't have a remainder.*</em></u>
Explanation:
Divide by the numbers.
![93/3=31](https://tex.z-dn.net/?f=93%2F3%3D31)
![93/31=3](https://tex.z-dn.net/?f=93%2F31%3D3)
Multiply by the numbers.
![31*3=93](https://tex.z-dn.net/?f=31%2A3%3D93)
![3*31=93](https://tex.z-dn.net/?f=3%2A31%3D93)
Hope this helps!
Thanks!
Have a great day!