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3 years ago

HURRY PLEASEEE PLEASE PLEASE!!!!!!!!!

Mathematics

2 answers:

Likurg_2 [28]3 years ago

6 0

Answer: 2000 tickets were sold

Step-by-step explanation:

8000 divided by 40 percent is 200

puteri [66]3 years ago

4 0

Answer:

Step-by-step explanation:

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Tina equally shares 8 cookies among herself and her 4 friends. which fraction shows how many cookies each person gets

Over [174]

Answer: 1 3/5

Step-by-step explanation:

if you have 8 cookies and want to share it with 5 total people you divide it so 8/5 is 1.6

6 0

3 years ago

Sunjai leaves a tip of $4 for his meal at the local burger place. His original meal cost him $18. What was his percent for the t

g100num [7]

Answer:its 22% pls just give me brainliest so i can move up a ranking

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A stick is broken into two pieces, at a uniformly random break point. Find the CDF and average of the length of the longer piece

Oksanka [162]

Answer:

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

Step-by-step explanation:

let assume that stick has length 1.Random variable L that make length of a longer piece and random variable U that mark point .See that L < l means that

U≤ l and 1-U ≤l

P(L ≤ l) =P (1-l ≤ U ≤ l)= l- ( 1 - l ) = 2 l - 1

this means 1-l≤U≤l

so we have

if we have L [1/2,1]

then apply the formula we have E(L)=3/4

5 0

4 years ago

Write an equation in slope-intercept form of the line that passes through the point (8, 2) and is parallel to the graph of the e

Digiron [165]

Answer:

y = 4x - 30

Step-by-step explanation:

The general slope-intercept equation for a straight line is

y = mx + b

For y = 4x – 3, m = 4

=====

The other equation passes through (8,2) and has slope 4:

y = 4x +b Set x = 8, y = 2.

2 = 4×8 + b

2 = 32 + b Subtract 32 from each side

b= -30

The equation for the second graph is

y = 4x – 30

The graph below shows Equation (1) as a red line.

The graph of Equation 2 is the green line that passes through (8,2), runs parallel to Equation (1), and has a y-intercept at (0,-30.

7 0

3 years ago

153 of the 258 high school students surveyed at a local school said they went outside more during school hours as elementary sch

Juli2301 [7.4K]

Answer-

It is reasonable that the state education department claims the percentage for the entire state is 63%.

Solution-

153 out of the 258 high school students surveyed at a local school said they went outside more during school hours as elementary school students than they do now as high school students.

Here,

x = 153,

n = 258,

Then,

$\text{sample proportion}=p=\dfrac{153}{258}=0.5930=59.30\%$

And,

$\text{Margin Error}=2\times \sqrt{\dfrac{p(1-p)}{n}}$

Putting the values,

$\text{ME}=2\times \sqrt{\dfrac{(0.5930)(1-0.5930)}{258}}\\\\=2\times \sqrt{\dfrac{(0.5930)(0.407)}{258}}\\\\=2\times \sqrt{\dfrac{0.2414}{208}}\\\\=2\times 0.0341\\\\=0.0682\\\\=6.82\%$

The interval would be,

$=(59.30-6.82,\ 59.30+6.82)\\\\=(52.48,\ 66.12)$

As population proportion p=63% lies in this interval, so it is reasonable.

5 0

4 years ago