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Margaret [11]
2 years ago
11

Write a real life scenario that is represented by the integer of 15.​

Mathematics
1 answer:
NeTakaya2 years ago
8 0

Answer:

A real life scenario could be like earning 15 dollars.

Step-by-step explanation:

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Think about a standard deck of 52 playing cards. Which of the following events is mutually exclusive?
Shtirlitz [24]

Answer:

1.) Drawing a king or a queen.

Step-by-step explanation:

1.) Drawing a king or a queen.

You cannot get a king and a queen at the same time= mutually exclusive

2.) Drawing a club or a black card.

King of clubs is both a club and a black card

3.) Drawing a king or a heart.

king of hearts is both a heart and a king

4.) Drawing a face card or a heart

queen of hearts is a heart and a face card

7 0
3 years ago
Half the sum of 4 consecutive integers is 53 what are the integers?
Sphinxa [80]

Answer:

25,26,27, and 28

Step-by-step explanation:

Write consecutive integers as x,x+1,x+2,x+3,x+4, and so forth.

x+x+1+x+2+x+3

----------------------       =   53

          2

1) Combine alike terms:

4x+6

-------   =    53

  2

2) Multiply both sides by 2:

4x+6=106

3) Subtract 6 from both sides:

4x=100

4) Divide both sides by 4:

x=25

5) Plug in 25 for x for all 4 integers:

25

26

27

28

6 0
3 years ago
Michelle bought five packs of crayons for 13.75. what is the cost of a pack ,in dollars, if all the packs cost the same​
Schach [20]

Answer:

2.75

Step-by-step explanation:

Divide 13.75 by five.

5 0
3 years ago
The standard IQ test has a mean of 97 and a standard deviation of 17. We want to be
densk [106]

Let's call our estimate x. It will be the average of n IQ scores. Our average won't usually exactly equal the mean 97.  But if we repeated averages over different sets of tests, the mean of our estimate the average would be the same as the mean of a single test,

μ = 97

Variances add, so the standard deviations add in quadrature, like the Pythagorean Theorem in n dimensions.  This means the standard deviation of the average x is

σ = 17/√n

We want to be 95% certain

97 - 5 ≤ x ≤ 97 + 5

By the 68-95-99.7 rule, 95% certain means within two standard deviations. That means we're 95% sure that

μ - 2σ ≤ x ≤ μ + 2σ

Comparing to what we want, that's means we have to solve

2σ = 5

2 (17/√n) = 5

√n = 2 (17/5)

n = (34/5)² = 46.24

We better round up.

Answer: We need a sample size of 47 to be 95% certain of being within 5 points of the mean

6 0
3 years ago
You inherited land that was purchased for $30,000 in 1960. The value of the land increases by approximately 5% per year. What wi
Naily [24]

Answer:

the answer would be I fly a starship, across the universe divide, and when I reach the otherside. I'll find a place to rest my spirit if I can.

8 0
3 years ago
Read 2 more answers
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