In a quiz contest, 4 marks were awarded for a correct answer and -2 marks were given for an incorrect answer. If James gave 5 in

Question

2 years ago

6

correct answers and scored 30 marks, find the number of correct answers given by him.
please help me

2 answers:

blondinia [14] · Answer 1 · 2022-09-14T02:09:24+03:00

Answer:

10, James got 10 correct answers.

Step-by-step explanation:

1 incorrect answer=-2 marks

5 incorrect answer=-10 marks

1 correct answer=4 marks

James has -10 marks for incorrect answers and James has 40 marks for correct answers. Because 10+30=40.

So James got 10 out of 15 answers correct.

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Zina [86] · Answer 2 · 2022-09-14T00:23:07+03:00

Zina [86]2 years ago

4 0

9514 1404 393

Answer:

10

Step-by-step explanation:

For c correct answers and 5 incorrect answers, James's score is ...

4c -2(5) = 30

4c = 40 . . . . . . add 10

c = 10 . . . . . . . . divide by 4

James gave 10 correct answers.