Olivia scored 82 points on the first mathematics test of the year. On the second mathematics test, she scored 78 points. What is

Question

2 years ago

6

the percent of change in the number of points she scored between the first and second tests? Round your answer to the nearest hundredths place.

1 answer:

Kryger [21] · Answer 1 · 2023-01-12T22:44:25+03:00

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%= $\frac{change \;in \;value}{Original\; value} *100$

= $\frac{4}{82} *100$

= 0.04878 * 100

= 4.878 %

There is 4.88% decrease in Olivia's score.

Learn more about percentage decrease here:

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