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iren2701 [21]
3 years ago
15

​58.​Anna and Maya are competing in a dance tournament where dance moves are worth a certain number of points. If a dance move i

s done correctly, the dancer earns points. If a dance move is done incorrectly, the dancer loses points. Anna currently has 225 points. ​a.​Before her dance routine ends, Anna earns 75 points and loses 30 points. Write and solve an expression to find Anna’s final score. ​ ​b.​Maya’s final score is 298. Which dancer has the greater final score?
Mathematics
2 answers:
Charra [1.4K]3 years ago
7 0
225 + 75 - 30 + ?
Is ? greater or less than 298?

Licemer1 [7]3 years ago
3 0
Anna has 270 
maya has 298 
maya has the greatest final score
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Answer:

7:24 pm

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Step-by-step explanation:

Given that:

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Step-by-step explanation:

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Suppose you take a simple random sample of size n=175 from the population of Reese's Pieces, still assuming that 45% of this pop
Gnesinka [82]

Answer:

The  probability is  P(0.35

Step-by-step explanation:

From the question we are told that

  The sample size is  n =  175

   The population proportion is  p =  0.45

   

Generally the mean of the sampling distribution is  \mu_{x} =  0.45

 Generally the standard deviation is mathematically represented as  

        \sigma_{x} =  \sqrt{\frac{p (1-p)}{n} }

=>      \sigma_{x} =  \sqrt{\frac{0.45 (1-0.45)}{175} }

=>      \sigma_{x} = 0.0376

Generally the probability of  that the sample proportion of orange candies will be between 0.35 and  0.55 is  

      P(0.35 <  X < 0.55) =  P( \frac{0.35 - 0.45}{0.0376} <  \frac{X -\mu_{x}}{\sigma_{x}}  <  \frac{0.55 - 0.45}{0.0376} )

=>   P(0.35

Generally \frac{X - \mu_{x}}{\sigma_{x}}  =  Z  (The \  standardized \  value \  of  X)

So

    P(0.35

=>  P(0.35

From the z-table  

    P(  Z< 2.6595 ) = 0.99609

and

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So

   P(0.35

=> P(0.35

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2 years ago
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