Mariana's score if got right if she got 5 wrong is 60 points.
Mariana's score if got right if she got xx wrong is 80 - 4xx.
<h3>What is Mariana's score?</h3>
The first step is to determine the number of questions that Mariana got right. In order to get the number of questions that she got right, subtract the total number of number of questions from the questions that he got wrong.
Questions that Mariana got right = total number of questions - questions he got wrong
Total number of questions = total number of points / point of each question
Total number of questions = 80 / 4
Total number of questions = 20
Questions that Mariana got right if he got 5 wrong = 20 - 5 = 15
Mariana's score = questions she got right x number of points per question
Mariana's score = 15 x 4 = 60 points
Questions that Mariana got right if he got x wrong = 20 - xx
Mariana's score = (20 - xx) x 4
Mariana's score = 80 - 4xx
To learn more about scores, please check: brainly.com/question/28627499
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