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3 years ago

14

Answer this question fast with steps and I'll mark brilliantest

1 answer:

zvonat [6]3 years ago

7 0

Answer:

825g and 3108g respectively

Step-by-step explanation:

Nitrogen needed for 2kg compound=275g

Nitrogen needed for 6kg compound=825g

Sulphur needed for 2kg compound=1036g

Sulphur needed for 6kg compound=3108g

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Problem PageQuestion Working together, two pumps can drain a certain pool in hours. If it takes the older pump hours to drain th

gizmo_the_mogwai [7]

Answer:

10.5 hours.

Step-by-step explanation:

Please consider the complete question.

Working together, two pumps can drain a certain pool in 6 hours. If it takes the older pump 14 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own?

Let t represent time taken by newer pump in hours to drain the pool on its own.

So part of pool drained by newer pump in one hour would be $\frac{1}{t}$ .

We have been given that it takes the older pump 14 hours to drain the pool by itself, so part of pool drained by older pump in one hour would be $\frac{1}{14}$ .

Part of pool drained by both pumps working together in one hour would be $\frac{1}{6}$ .

Now, we will equate the sum of part of pool emptied by both pumps with $\frac{1}{6}$ and solve for t as:

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$\frac{1}{14}\times 42t+\frac{1}{t}\times 42t=\frac{1}{6}\times 42t$

$3t+42=7t$

$7t=3t+42$

$7t-3t=3t-3t+42$

$4t=42$

$\frac{4t}{4}=\frac{42}{4}$

$t=10.5$

Therefore, it will take 10.5 hours for the newer pump to drain the pool on its own.

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