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tatuchka [14]
3 years ago
6

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

correct answers and scored 30 marks, find the number of correct answers given by him.
please help me​
Mathematics
2 answers:
blondinia [14]3 years ago
8 0

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.

Also, can you please, please, please give me brainliest? I need 2 more brainliest to level up! Please, Please, Please.

Zina [86]3 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.

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liberstina [14]
5y + 7 < = -3
5y < = -3 - 7
5y < = -10
y < = -10/5
y < = -2

3y - 2 > = 13
3y > = 13 + 2
3y > = 15
y > = 15/3
y > = 5
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3 years ago
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Hunter-Best [27]
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Step-by-step explanation:

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