Question

Can someone show me how to do this step by step (part c pls) :)

Answer 1

20

Explanation:

15 questions answered

10 are correct so they get 30 or 3*10

5 are incorrect so the get a -10 or -2*5

Total score is 30-10 or 20

Answer 2

The student scores 20 pts

Explanation:

A student answers 10 Q's correct, this earns the student 30 points (3 x 10)

The other 5 Q's are presumably wrong since they did answer the question

If every question wrong loses 2 pts then the student lost 10 points from wrong answers (2x5) =10

Take the total amount of secured points and subtract the points for questions that the student got wrong

30 pts - 10 pts = 20 pts