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Jalessa earned a score of 160 on a recent 50 question spelling contest. The scoring for the contest was +4 for each correct answer, -1 for each incorect answer, and 0 for each unanswered question. If she answered every question, what is the maximum number of questions that Jaleesa could have answered correctly?

Respuesta :

mhanifa

Answer:

  • 42 correct answers

Step-by-step explanation:

Set a system of equations.

c- correct, i- incorrect.

  • c + i = 50
  • 4c - i = 160

Add the equations together:

  • 5c = 210
  • c = 42

Then find the value of i:

  • i = 50 - 42
  • i = 8

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