1.The strength of an electromagnet<span> can be adjusted by the amount of electric current allowed to flow into it.
2. Electromagnets are much stronger than regular magnets
3. Electromagnets use coils while regular magnets use magnetic materials like Iron.
Brainliest?</span>
The slope would be letter b
Answer:
6 hours.
Step-by-step explanation:
Let t represent time taken by plant 1 in hours to release the waste.
Part of waste released by plant 1 in one hour would be
.
We have been given that two chemical plant 1 releases waste twice as fast as plant 2, so time taken by plant 2 to release the waste would be
.
Part of waste released by plant 2 in one hour would be
.
We are also told that together they fill the tank in 4 hours. So part of tank filled by both plants working together in one hour would be
.




Therefore, it will take 6 hours for the faster plant to fill the tank working alone.
Here, 4x + x =180 [ Supplementary angles ]
5x = 180
x = 180/5
x = 36
In short, Your Answer would be Option C
Hope this helps!
I think is A or b go try it am not 100% sure