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makkiz [27]
3 years ago
13

Lucy is in charge of planning a reception for 2400 people. She is trying to decide which snacks to buy. She has asked a random s

ample of people who are coming to the reception what their favorite snack is. Here are the results.
Favorite Snack Number of People
Brownies 29
Cookies 27
Chips 61
Other 63
Based on the above sample, predict the number of the people at the reception whose favorite snack will be cookies. Round your answer to the nearest whole number.
Mathematics
1 answer:
navik [9.2K]3 years ago
6 0

Answer:

360 people.

Step-by-step explanation:

Given the sample as:

  • Brownies 29
  • Cookies 27
  • Chips 61
  • Other 63

#Find the probability of a person eating cookies:

P(cookies)=\frac{No \ of \ cookies \ People}{No \ of people \ in \ sample}\\\\=\frac{27}{29+27+61+63}\\\\=0.15

#To find the number of cookie people in the population, we multiply the population size by the probability of having a cookie:

P_c=np, n=2400, p=0.15\\\\=2400\times 0.15\\\\=360

Hence, cookies is a favorite of 360 people.

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Solve for x. 3x + 5 = 23​
Lunna [17]

[|] Answer [|]

\boxed{X \ = \ 6}

[|] Explanation [|]

3x + 5 = 23

_________

_________

Subtract 5 From Both Sides:

3x + 5 - 5 = 23 - 5

Simplify:

3x = 18

Divide Both Sides By 3:

\frac{3x}{3} \ = \ \frac{18}{3}

Simplify:

X = 6

_________

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- Check Your Work -

Substitute 6 For X:

3 * 6 + 5 = 23

Parenthesis

Exponents

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3 * 6 = 18

18 + 5 = 23

\boxed{[|] \ Eclipsed \ [|]}

8 0
3 years ago
Read 2 more answers
M is directionly proptional to r squared
sergejj [24]

9514 1404 393

Answer:

  A) 504

  B) 8

Step-by-step explanation:

The statement of proportionality can be written as the equation ...

  m = kr²

Then we can find k from ...

  k = m/r² = 14/2² = 7/2

That is, ...

  m = (7/2)r²

__

Using this relation, we can find m for r=12:

  m = (7/2)·12² = 7·72

  m = 504 . . . for r = 12

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And, we can use the same equation to solve for r when m=224.

  224 = 7/2·r²

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  r = √64

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4 0
2 years ago
the ratio of students at a school is 3 boys for every 4 girls. If there are 52 girls how many boys are in the school
vova2212 [387]
There are 39 boys. 
First you divide 4 into 52 because there are 3 boys for 4 girls. 
Then you take the quotient, 13, and multiply by 3.
3 0
3 years ago
An equation in point slope form that passes through (9, -2) and (-3, 2)
Harman [31]

Answer:

     1

-----------

    -3

Step-by-step explanation:

(9, -2) (-3, 2)

    2- -2                 4                    1

---------------  =  --------------- = ---------------

    -3-9                 -12                  -3

                                 (simplifyed)

7 0
3 years ago
NEED ANSWER ASAP:
andriy [413]

Answer:

14/27 feet

Step-by-step explanation:

2 1/3 feet : 4 1/2 feet

= 7/3 : 9/2

= 7/3 ÷ 9/2

= 7/3 × 2/9

= (7*2)/(3*9)

= 14/27 feet

2 1/3 feet : 4 1/2 feet = 14/27 feet

8 0
3 years ago
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