What is 5 times 1? I learned this a long time ago but I forgot.
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The percent of change in the number of points she scored between the first and second tests = 4.878 %
<h3>What is percentage decrease?</h3>
If the data is decreasing,
Decrease = Original Number - New Number.
Then: divide the decrease by the original number and multiply the answer by 100.
% Decrease = Decrease ÷ Original Number × 100.
Given that:
The score of first Math test = 82
The score of second Math test = 78
Changes occurs in marks by=78-82
=-4
So, there is decrease in marks.
We have to find the decrease percentage:
Decrease%=
=
= 0.04878 * 100
= 4.878 %
There is 4.88% decrease in Olivia's score.
Learn more about percentage decrease here:
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