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Romashka [77]
3 years ago
6

It takes six analysts forty-two days to write a report. If the report had to be ready in 7 days, how many analysts would be need

ed?
Mathematics
1 answer:
Akimi4 [234]3 years ago
7 0
If you assume doubling the workers will halve the time taken to finish then 12 analysts will take 21 days
To finish in 7 days (1/6 of 42 days) you would need 6 x the original number = 36 analysts.

Brook’s Law (see Wikipedia) suggests than adding extra analysts will actually slow the project down!
One reason is the extra people tend to get in each others way.
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The cylinders are similar the volume of the larger cylinder is 1600 cubic centimeters what is the volume of the smaller cylinder
cestrela7 [59]

We are given Volume of the larger cylinder is = 1600 cubic centimeters.

Height of the larger cylinder = 16 cm.

We know formula of volume of a cylinder V=\pi r^2h, where r is the radius of cylinder,  h is the height of the cylinder.

Plugging value of V and h of larger cylinder, we get

1600=\pi r^2(16).

Dividing both sides by 16, we get

\frac{1600}{16}=\frac{\pi r^2 (16)}{16}

r^2=100

Taking square root on both sides, we get

r=10.

Therefore, radius of the larger cylinder is 10 cm.

We are given cylinders are similar .

<u>Note: The radii and heights of similiar cylinders are in same ratio.</u>

Therefore, we can setup a proportion:

Let us take radius of small cylinder is x.

\frac{x}{10}=\frac{4}{16}

\frac{x}{10}=\frac{1}{4}

Multiplying both sides by 10, we get

10 \times \frac{x}{10}=10 \times\frac{1}{4}

x=2.50.

Therefore, radius of the small cylinder = 2.5 cm.

Now, plugging radius =2.5 and height  = 4 in the formula of volume the cylinder, we get

V=\pi (2.5)^2(4)=\pi (6.25)(4) =25 \pi \ cm^3.

Therefore, correct option is 25 pi cm^3.

8 0
3 years ago
Give the slope and the y-intercept of the line y = – 6x– 4. Make sure the y-intercept is written as
jonny [76]

Answer:

Step-by-step explanation:

Slope = -6

Y-intercept (0, -4)

7 0
3 years ago
What is the sales price of a $18.95 football with a 15% discount?
skelet666 [1.2K]
$18.95 x 15/100 is equal to 2.84

18.95 - 2.84 is equal to $16.11

Hope that helped! :)
7 0
3 years ago
Read 2 more answers
Can someone help me plz need this done by tmrw
iren2701 [21]

Answer:

X= -2

Step-by-step explanation:

herp derp herp derp

5 0
3 years ago
I need help with this
elena55 [62]
The answer to this is choice D
4 0
3 years ago
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