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torisob [31]
3 years ago
7

What number is midway between 2/5 and 1?

Mathematics
2 answers:
jeka57 [31]3 years ago
5 0
4/10 and 10/10:

7/10.
snow_lady [41]3 years ago
4 0

Answer: \frac{7}{10}

Step-by-step explanation:

To find the mid point 'c' between any two numbers 'a' and 'b' we apply the following rule:-

c=\frac{a+b}{2}

Now, the number is midway between 2/5 and 1 will be given by :-

\c=\frac{\frac{2}{5}+1}{2}\\\\\Rightarrow\ c=\frac{\frac{7}{5}}{2}....\text{[by taking LCM]}\\\\\Rightarrow\ c=\frac{7}{2\times5}\\\\\Rightarrow\ c=\frac{7}{10}

Hence, the number is midway between 2/5 and 1 =\frac{7}{10}

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\frac{5601}{7}  \ \textgreater \  800
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The  number is  N  =1147 students

Step-by-step explanation:

From the question we are told that

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     The standard deviation is  \sigma  =  34.4

    The sample size is  n = 2000

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The  percentage is  P(250 <  X <  305 ) =  57\%

The  number of students that will get this score is

           N  = 2000 * 0.57

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