aidendenham2008 aidendenham2008

09-01-2022
Mathematics

contestada

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 daniella88gan

09-01-2022

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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