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Phoenix [80]
4 years ago
10

There were four workers that arrived in town looking for employment they met with a business owner who said he could pay them fo

r 200 hours of work however there was a catch they could divide up the work anyway they wanted to but each worker had to work the same number of days as he worked hours in one day for example if a worker worked eight hours a day here she had to work for eight days the other catch is that the laziest worker of all did the negotiations with the business owner and then went back to present the plan to his her paid. The question is how many hours a day did each worker work?
Mathematics
1 answer:
BARSIC [14]4 years ago
5 0

Answer:14 days 14hours 17min 8 sec

Step-by-step explanation:

14×14=196

Then the 4 extre hours divide them in the 14days

4×60=240min

240÷14=17min and extre 2min

2min×60=120 sec

120sec÷14=8 sec

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What is the cross-sectional area of a cement pipe 2 in. thick with an inner diameter of 5 ft? Use pie 3.14.
Paul [167]

Answer:

1.60 ft^{2}

Step-by-step explanation:

Assuming that this is a cylindrical pipe, the area can be determined by applying the formula for calculating the area of a circle.

i.e Area = \pir^{2}

So that,

for the inner part of the pipe,

r = \frac{diameter}{2}

 = \frac{5}{2}

 = 2.5 feet

Area of the inner part of the pipe = \pir^{2}

                                 = 3.14 x (2.5)^{2}

                                 = 19.625

Are of the inner part of the pipe is 19.63 ft^{2}.

Total diameter of the pipe = 5 + 0.2

                                           = 5.2 feet

r = \frac{5.2}{2}

 = 2.6 feet

Area of the pipe = \pir^{2}

                            = 3.14 x (2.6)^{2}

                            = 21.2264

Area of the pipe is 21.23 ft^{2}.

Thus the cross sectional area = Area of the pipe - Area of the inner part of the pipe

                                           = 21.2264 - 19.625

                                           = 1.6014

The cross sectional area of the cement pipe is 1.60 ft^{2}.

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dmitriy555 [2]

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Answer:

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Step-by-step explanation:

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or 

m(x) = x² - 4x + 3
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