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siniylev [52]
3 years ago
6

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439439439 chocolate chip cookies, wh

ich represented 25\%%, percent of all the cookies the employee burned in that day. How many cookies did the new employee burn in the course of the day
Mathematics
1 answer:
pshichka [43]3 years ago
3 0

Answer:

The new employee burn <u>1756 cookies</u> in the course of the day.

Step-by-step explanation:

Given:

Mr. Edwards hired a new employee to work in his bakeshop. In one hour, this employee burned 439 chocolate chip cookies, which represented 25 percent of all the cookies the employee burned in that day.

Now, to find the cookies the new employee burn in the course of the day.

Let the cookies the new employee burn in the course of the day be x.

Number of chocolate chip cookies new employee burned = 439.

Percent this represented of all the cookies the employee burned in that day = 25%.

Now, to get the cookies the new employee burn in the course of the day we put an equation:

25\%\ of\ x=439

\frac{25}{100} \times x=439

0.25\times x=439

<em>Dividing both sides by 0.25 we get:</em>

x=1756.

Therefore, the new employee burn 1756 cookies in the course of the day.

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Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

\textrm{Slant height  l} = \sqrt{r^2 + h^2}  (1)

\textrm{Lateral surface area} = \pi r l

\textrm {Base area} = \pi r^2

\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l) (2)

\textrm{Volume V = } (1/3)  \pi r^2h (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA}  = 4\pi(4 + 8.944) =  4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04

Figure(b)

r = 7, h =15

\textrm{l} = \sqrt{7^2 + 15^2} =\sqrt{274} = 16.55

\textrm{SA}  = 7\pi(7 + 16.55) =  517.89

Figure (c)

r = 5, l = 8

h = \sqrt{l^2 - r^2} = \sqrt{8^2 - 5^2} = \sqrt{39} = 6.245\\SA = \textrm{SA}  = 5\pi(5 + 8) =  204.2\\V = (1/3)\pi(5^2)(6.245) = 163.5


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2 years ago
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Step-by-step explanation:

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Hello!

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