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Schach [20]
3 years ago
9

Leora had some money in her wallet. She spent $18.62 buying groceries and had $43.55 left. How much money did she

Mathematics
2 answers:
morpeh [17]3 years ago
5 0

Answer:

$62.17

Step-by-step explanation:

18.62 + 43.55 = 62.17

telo118 [61]3 years ago
4 0

Answer:

$62.17

Step-by-step explanation:

we can find out how much she had before she bought groceries by adding the amount she spent to the amount she had left.

43.55 + 18.62 = 62.17

therefore, the answer is $62.17

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AMERICAN AIRLINES HAS A POLICY OF BOOKING AS MANY AS 15 PEOPLE ON AN AIRPLANE THAT CAN SEAT ONLY 14. (PAST STUDIES HAVE REVEALED
Blizzard [7]

Using the binomial distribution, there is a 0.0874 = 8.74% probability that not enough seats will be available.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

For this problem, the values of the parameters are given by:

n = 15, p = 0.85.

The probability that not enough seats will be available is P(X = 15), as the only outcome in which not enough seats will be available is when all 15 people who bought the ticket show up, hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 15) = C_{15,15}.(0.85)^{15}.(0.15)^{0} = 0.0874

0.0874 = 8.74% probability that not enough seats will be available.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0
1 year ago
a cookie company paid students to try there cookies. each student was paid $24 . the cookie company paid a total of $888. how ma
DerKrebs [107]

Answer:

37 children

Step-by-step explanation:

to find how many students there were you are going to divide 888 by 24 so there are 37 children. that is one way another way is to draw it as a fraction so have it like this 888/24  

7 0
4 years ago
Read 2 more answers
Kim and Daniel are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of
ivanzaharov [21]

There are two equation:

1) From Kim

2) From Daniel


Let:

x be the cost of rolls of plain wrapping paper

y be the cost of rolls of shiny wrapping paper


Kim:

7x + 8y = 140

Daniel:

14x + 7y = 154


<u>Using elimination method:</u>

(7x + 8y = 140) * -2  (Multiplying the equation by -2)

-14x - 16y = -280


-14x  -16y = -280

14x + 7y = 154

------------------------------

0x - 9y = -126

9y = 126 (Negative sign cancels from both sides)

y = 126 /9

y = 14


The cost of each shiny wrapping paper is $14.


Now solve x, you pick any two equation to solve for x.

7x + 8y = 140

7x + 8(14) = 140 (You know from above y =14)

7x + 112 = 140

7x = 28

x = 28/7

x = 4


The cost of each plain wrapping paper is $4.


Solution: (4,14)

4 0
4 years ago
What is the image of (6,-6) after a dilation by a scale factor of 4 centered at the origin
skelet666 [1.2K]

9514 1404 393

Answer:

  (24, -24)

Step-by-step explanation:

Dilation centered at the origin multiplies each coordinate by the dilation factor.

  image = 4 × (6, -6)

  image = (24, -24)

6 0
3 years ago
How many ways can you make change for $0.40 using only nickels dimes and quarters
rjkz [21]
8 nickels. 
<span>4 dimes. </span>
<span>1 quarter. 1 dime. 1 nickel. </span>
<span>1 quarter. 3 nickels. </span>
<span>3 dimes. 2 nickels. </span>
<span>2 dimes. 4 nickels. </span>
<span>1 dime. 6 nickels.
7 different ways</span>
7 0
3 years ago
Read 2 more answers
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