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Zachary collects cans for the recycling club.
On the first day, he found 4 cans.
On the second day, he found 9 cans.
He found 14 cans on the third day.
If this pattern continues, how many cans do you 
think Zachary will find on the seventh day?

 Dec 31, 2021
 #1
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Zachary collects 4 cans on the first day, 9 cans

on the second day, and 14 cans on the third

day.

This sequence is represented by
                          4, 9, 14, ......

This forms an AP.

First-term, a = 4

 

common difference, d = (9 - 4) = 5

On the 7th day,
            a7 = a + 6d = 4 + 6 * 5 = 34

Hence, He found 34 cans on the 7th day.

 Dec 31, 2021

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