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Hatshy [7]
3 years ago
5

Alexis has a steady babysitting job over the summer. She starts out with $50 by the end of the first week and earns $30 each wee

k. She thinks it will take her 7 weeks to have enough money to buy a $200 iPhone. Is she correct? Justify your answer using complete sentences and proper grammar.
Mathematics
1 answer:
Ket [755]3 years ago
4 0
Yes it is correct because you would multiply 30 by 7 which equals 210 + the extra 20 dollars / 50 dollars (idk).. she will have more than enough though
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Answer: 16

Step-by-step explanation:

Given : Mean : \mu=100

Standard deviation : \sigma =15

The value of z-score is given by :-

z=\dfrac{x-\mu}{\sigma}

For x= 115

z=\dfrac{115-100}{15}=1

The p-value : P(z>1)=1-P(z

Now, the number of people smarter than Many is given by :_

100\times0.1586553=15.86553\approx16

Hence, there are 16 members smarter than Mandy.

8 0
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gtnhenbr [62]
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Finger [1]

Answer:

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The probability that the average salary between two groups is the same, is actually low. It could be close, but it's quite difficult to get the same exact amount.

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4 years ago
Which of the following activities are examples of data gathering?
arsen [322]
the correct answer is d
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The vertices of angleABC are A(1,1) B(5,1) C(3,3) drawl the triangle and it’s image A’B’C’ reflected in the Y axis. What are the
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(x, y ) → (- x, y )

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C(3, 3 ) → C'(- 3, 3 )


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