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3 years ago

What is the next number in this sequence and why?

Mathematics

1 answer:

vekshin13 years ago

3 0

2,6,15,31,......

6-2=4=2X2

15-6=9=3X3

31-15=16=4X4

So the next number should be 31+5X5=56

hope this helps :)

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Given:

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The linear equation which fits this data, and use this equation to predict an average score for persons taking a 57-hour review course.

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Let x be the number of hours of review course and y be the average score on that exam.

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Adding 620 on both sides, we get

$y=\dfrac{129}{40}x-\dfrac{387}{4}+620$

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