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love history [14]
3 years ago
10

Paul, Brendan, and Charlie are chopping wood. It would take Paul 10 hours to chop up one cord of firewood. It would take Brendan

12 hours to chop one cord, and it would take Charlie 15 hours to do the same job by himself. How long will it take the three of them working together?
It will take blank hours for the three boys to chop up one cord of firewood.

The solution is
Mathematics
1 answer:
Artist 52 [7]3 years ago
6 0

Answer: It will take the 4 hours

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Determine whether the statement describes a descriptive or inferential statistic. A survey of 3459 people revealed that 52% work
andriy [413]

Answer:

Inferential statistics.

Step-by-step explanation:

We have been given a statement. We are asked to determine whether the given statement describes a descriptive or inferential statistic.

Statement: A survey of 3459 people revealed that 52% work a full-time job; therefore it can be assumed that 52% of the U.S. population works a full-time job.

We know that descriptive statistics represents the description about population using the data through numerical calculations, graphs or tables. While inferential statistics makes predictions about a population based on a sample of data taken from the population.

Since our statement gives the prediction about people, who work full-time in U.S. based on a survey of 3459 U.S. citizens, therefore, the given statement is inferential statistic.

7 0
3 years ago
100pts Help rounding!
Semmy [17]

Answer:

5

Step-by-step explanation:

5 158/559

= 5 + 158/559

= 5 + 0.28264758

= 5.28264758

= 5 (rounded to nearest whole number)

4 0
2 years ago
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A pharmacist put 3.84 ounces of vitamin pills into bottles. She put 0.032 ounce
Alecsey [184]

Answer:

0.032

Step-by-step explanation:

Divide each term by 0.032 and simplify

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Answer:

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20 + 2(3-5)^2 + 30/10 x 3
KonstantinChe [14]

20 + 2*(3-5)^2 + (30/10)*3

20 + (2*[-2])^2 + (3*3)

20 + (-4)^2 + 9

29 + 16

45

Note that * is used to signify multiplication.

5 0
3 years ago
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