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One night, Adam decided to play video games instead of studying for his test. That's why he earned a score of 40. Adam's teacher allowed him a
one-time make-up test. This time, Adam studied. It paid off because he earned a score of 90.
To find the percent change in Adam's score, first write the percent change equation.
What is the equation after you substitute in the appropriate values?
Enter your answer by filling in the boxes.
percent change =
100%



Answer :

rvkacademic

Answer:

[tex]\boxed{\mathrm{Percent\;Change(\%) = \dfrac{New Value - Old \;Value}{Old\; Value}} \times 100}[/tex]

The percent change in Adam's score
[tex]\boxed{125\%}[/tex]

Step-by-step explanation:

If you wish to compute the percent change in the scores use the following percent change formula

[tex]\boxed{\mathrm{Percent\;Change(\%) = \dfrac{New Value - Old \;Value}{Old\; Value}} \times 100}[/tex]

We multiply by 100 to get the result as a percentage rather than a fraction

Substituting
Old Value = 40
New Value = 90

[tex]\mathrm{Percent\;Change(\%) = \dfrac{90 - 40}{40}} \times 100}\\\\\mathrm{Percent\;Change(\%) = \dfrac{50}{40} \times 100\\\\[/tex]

[tex]\mathrm{Percent\;Change(\%)} = \dfrac{5}{4} \times 100\\\\\mathrm{Percent\;Change} = 125\%[/tex]

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