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3 years ago

1. FIND THE MEAN OF 8, 15, 10, 22, 16, 4

Mathematics

2 answers:

lianna [129]3 years ago

6 0

Answers:

1. 12.5

2. 36

3. 40.5 kg

4. 13 and 8

5. 9

Look at the attached picture

Hope it will help you...

Good luck on your assignment

Nostrana [21]3 years ago

4 0

1) the mean is 12.5
2) X is 36
3) the median mass is 40.5 KG
4) the mode is 8, 13
5) the range is 9

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vladimir2022 [97]

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2 years ago

If there are 18 marbles in a jar and Edgar's absolute guessing error is what was Edgar's original guess?

Anon25 [30]

Answer:

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A tank can be filled by one pump in 3.2 hours and by another pump in 80 minutes. A third pump can drain the tank in 2 hours and

Mademuasel [1]

Answer:

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

Step-by-step explanation:

Let's convert each time to minutes:

3.2 hours = 192 minutes

80 minutes = 80 minutes

2 hr 20 min = 140 minutes

Next, let's find the least common multiple:

LCM(192, 80, 140) = 6720

So let's say the volume of the tank is 6720 units. The speed of each pump is therefore:

Pump 1 = 6720 units / 192 minutes = 35 units/minute

Pump 2 = 6720 units / 80 minutes = 84 units/minute

Pump 3 = -6720 units / 140 minutes = -48 units/minute

Their combined speed is:

35 + 84 − 48 = 71 units/minute

So the time to fill the tank is:

6720 units / (71 units/minute) = 94.65 minutes

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

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