aidendenham2008
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Kosta is a contestant on a math quiz show. For every correct answer, Kosta receives $18.00. For every incorrect answer, Kosta loses $24.00. Kosta answers the questions correctly twice as often as he answers the questions incorrectly. In total, Kosta wins $72.00. How many questions does Kosta answer incorrectly?​

Respuesta :

daniella88gan

Answer:

6

Step-by-step explanation:

x = number of questions answered correctly

y = number of questions answered incorrectly

  18x - 24y = 72

  x = 2y

18*(2y) - 24y = 72

36y - 24y = 72

12y = 72

y = 72/12

y = 6

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