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vazorg [7]
2 years ago
9

Two pools are being drained. To start, the first pool had 3700 liters of water and the second pool had 4228 liters of water. Wat

er is being drained from the first pool at a rate of 31 liters per minute. Water is being drained from the second pool at a rate of 42 liters per minute.
Mathematics
1 answer:
cestrela7 [59]2 years ago
3 0

Answer:

Pool 1 will be drained out just over a minute before pool 2.

Step-by-step explanation:

Pool 1

3700/31 = 119.35minutes

Pool 2

4228/42 = 100.67minutes

Pool 1 will be drained out just over a minute before pool 2

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Answer:

28%

Step-by-step explanation:

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Which equation combines with the given equation to form a system of equations with the solution x = 3 and y = 9? x + 2y = 21
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2 years ago
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Mamont248 [21]

we have

7=-2x^{2} +10x

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Remember that

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x=2.5(+/-)\frac{\sqrt{11}}{2}

x=2.5+\frac{\sqrt{11}}{2}=\frac{5+\sqrt{11}}{2}

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<u>the answer is</u>

The solutions are

x=\frac{5+\sqrt{11}}{2}

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2 years ago
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Advocard [28]

If N is first and L is last, then we just need to find all of the permutations for M, O, and P

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