16+x=-34 Solve the equation for the value of the variable show all work helpppp:)
1 answer:
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Answer:
The percentage of the students scored higher than 89% is 15.87%
Step-by-step explanation:
we are given
The average test scores for a particular test in algebra was 84
so, mean is 84
a standard deviation of 5
so,
we have
x=89
now, we can use z-score formula
now, we can plug values
now, we can use calculator
and we get
So,
The percentage of the students scored higher than 89% is 15.87%
Answer:
<h2> <em><u>x = 2.82 (approx.)</u></em></h2>Step-by-step explanation:
<em><u>Given</u></em><em><u>, </u></em>
- 356 = -77 - 99x
=> -77 - 99x = -356
=> -99x = -356 + 77
=> -99x = -279
=> x = 2.8181....
=> <em><u>x = 2.82 (approx.) (Ans)</u></em>