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inn [45]
4 years ago
10

Roberto paid $43.08 for 3 cds. all 3 cds were the same price. how much did each cd cost

Mathematics
2 answers:
tatuchka [14]4 years ago
7 0
Divide 43.08 by 3 cds to get the cost of each CD

43.08 divided by 3 is 14.36

Each CD costs $14.36
Fed [463]4 years ago
5 0
Each cost $14.36  each
Hope that helps :)
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The SAT Reasoning Test (formerly called the Scholastic Aptitude Test) is perhaps the most widely used standardized test for coll
slamgirl [31]

Answer:

The score is  x  =  1884

Step-by-step explanation:

From the question we are told that

     The population mean is  \mu  = 1500

     The standard deviation is  \sigma  =  300

     

From the question we are told that the score follow a normal distribution

i.e     X  \~  \   N( 1500 , 300)

The proportion of score in the top 10% is mathematically

           P(X > x )  =  P( \frac{X -  \mu}{\sigma }  > \frac{x -  \mu}{\sigma }   ) = 0.10

Where x is the minimum score required to be in the top 10%

Now the \frac{X -  \mu}{\sigma }   =  Z (The  \ Standardized \ value \  of  \  X)

  So

            P(X > x )  =  P( Z > \frac{x -  \mu}{\sigma }   ) = 0.10

So

            P(X > x )  =  P( Z > \frac{x -  1500}{300}   ) = 0.10

So the critical value of  0.10  from the normal distribution table is  Z_{0.10} =  1.28

So

               \frac{x -  1500}{300}   = 1.28

              x  =  1884

           

       

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3 years ago
Can someone help with this please?
lbvjy [14]

Answer:

900

Step-by-step explanation:

Might wanna double check. I rushed

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8 0
3 years ago
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blagie [28]

the abswer of this question is c

6 0
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Step-by-step explanation:

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