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Answer:
3 machine
Step-by-step explanation:
It is given that 6 machine each working at the same rate can complete the work in 12 days
We the has to complete in 8 days
Let we need x extra machine to complete the work in 8 days
So total number of machines =x+6
Now according to man work day equation ![M_1D_1=M_2D_2](https://tex.z-dn.net/?f=M_1D_1%3DM_2D_2)
![6\times 12=(x+6)\times 8](https://tex.z-dn.net/?f=6%5Ctimes%2012%3D%28x%2B6%29%5Ctimes%208)
![8x+48=72](https://tex.z-dn.net/?f=8x%2B48%3D72)
![8x=24](https://tex.z-dn.net/?f=8x%3D24)
x=3 machine
A. Is changed or manipulated in the experiment
Given:
Planes X and Y are perpendicular to each other
Points A, E, F, and G are points only in plane X
Points R and S are points in both planes X and Y
Lines EA and FG are parallel
The lines which could be perpendicular to RS are EA and FG.
Answer:
1. -16-(-11)=5
2.48 divided by -8 is 12
3.13/5=2
4.81-11=7
5.3*2=35
6 35*2=5
Step-by-step explanation: