Answer: 8 copies
Step-by-step explanation:
1/3 of 60 is 20. 1/5 of 40 is 8. 8x3=24, 40-24=16
That would be 12*2 + 10*2 = 24 + 20 = 44 feet
Answer: Hence, Option (6) and (8) are correct as their value is also "-8".
Step-by-step explanation:
Since we have given that
![\frac{2}{3}(6x+12)=-24](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%286x%2B12%29%3D-24)
First we need to solve to get the value of 'x' :
![\frac{2}{3}(6x+12)=-24\\\\6x+12=\frac{3}{2}\times (-24)\\\\6x+12=3\times (-12)\\\\6x+12=-36\\\\6x=-36-12\\\\6x=-48\\\\x=\frac{-48}{6}\\\\x=-8](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%286x%2B12%29%3D-24%5C%5C%5C%5C6x%2B12%3D%5Cfrac%7B3%7D%7B2%7D%5Ctimes%20%28-24%29%5C%5C%5C%5C6x%2B12%3D3%5Ctimes%20%28-12%29%5C%5C%5C%5C6x%2B12%3D-36%5C%5C%5C%5C6x%3D-36-12%5C%5C%5C%5C6x%3D-48%5C%5C%5C%5Cx%3D%5Cfrac%7B-48%7D%7B6%7D%5C%5C%5C%5Cx%3D-8)
Therefore, x=-8
Now, we will check all the options :
1) 4x+8=24
![4x+8=24\\\\4x=24-8\\\\4x=16\\\\x=\frac{16}{4}=4](https://tex.z-dn.net/?f=4x%2B8%3D24%5C%5C%5C%5C4x%3D24-8%5C%5C%5C%5C4x%3D16%5C%5C%5C%5Cx%3D%5Cfrac%7B16%7D%7B4%7D%3D4)
2) 9x+18=-24
![9x+18=-24\\\\9x=-24-18\\\\9x=-42\\\\x=-4.67](https://tex.z-dn.net/?f=9x%2B18%3D-24%5C%5C%5C%5C9x%3D-24-18%5C%5C%5C%5C9x%3D-42%5C%5C%5C%5Cx%3D-4.67)
3) 4x+12=-24
![4x+12=-24\\\\4x=-24-12\\\\4x=-36\\\\x=\frac{-36}{4}=-9](https://tex.z-dn.net/?f=4x%2B12%3D-24%5C%5C%5C%5C4x%3D-24-12%5C%5C%5C%5C4x%3D-36%5C%5C%5C%5Cx%3D%5Cfrac%7B-36%7D%7B4%7D%3D-9)
4) 18x+36/2=-24
![18x+18=-24\\\\18x=-24-18\\\\18x=-42\\\\x=-2.34](https://tex.z-dn.net/?f=18x%2B18%3D-24%5C%5C%5C%5C18x%3D-24-18%5C%5C%5C%5C18x%3D-42%5C%5C%5C%5Cx%3D-2.34)
5) 4x=-36
![x=\frac{-36}{4}=-9](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-36%7D%7B4%7D%3D-9)
6) 4x=-32
![x=\frac{-32}{4}=-8](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-32%7D%7B4%7D%3D-8)
7) x=-9
8) x=-8
Hence, Option (6) and (8) are correct as their value is also "-8".
Answer:
looks right
Step-by-step explanation: