Marissa is reading over her blood work results from her doctor. According to the report, there are about 3.7 × 105 platelets and
1 answer:
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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.