quantamagic
27.01.2021 •
Mathematics
Let x be the number of questions worth 5 points and let y be the number of questions worth 2 points.
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Ответ:
Let x and y be the numbers of questions worth 5 and 2, respectively. There are a total of 29 questions which means that x + y should be 29. The equations that best describe the conditions are,
x + y = 29
5x + 2y = 100
Solving for x and y gives x = 14 and y = 15. Thus, there are 14 and 15 questions worth 5 and 2, respectively.
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