Question

stella is taking a multiple choice test with a total of 20 points available. each question is worth exactly 2 points. what would be stellas test score (out of 20) if she got 2 questions wrong? what would be her score if she got x questions wrong?

answer attempt 1 out of 2

score with 2 questions wrong:

score with x questions wrong:

Explanation:

Step1: Find total number of questions

Total points = 20, each question is 2 points. So number of questions = $\frac{20}{2}=10$.

Step2: Score when 2 questions wrong

Points lost for 2 wrong questions = $2\times2 = 4$. So score = $20 - 4 = 16$.

Step3: Score when \( x \) questions wrong

Points lost for \( x \) wrong questions = $2\times x = 2x$. So score = $20 - 2x$.

Answer:

Score with 2 questions wrong: 16
Score with \( x \) questions wrong: \( 20 - 2x \)