Asked by Aleah
each day Ashley practices free throws. The first day she takes 12 shots, and every day after she takes 2 more than the previous day. How many free throws will she shoot on the 6th day. Thank you. =)
Answers
Answered by
Reiny
This is an AP, where a = 12, and d = 2
sum(6) = (6/2)(24 + 5(2)) , using our formula
= 3(34)
= 102
or
... if you don't know what an arithmetic sequence is:
day1 = 12
day2 = 14
day3 = 16
day4 = 18
day5 = 20
day6 = 22
add them up to get 102
sum(6) = (6/2)(24 + 5(2)) , using our formula
= 3(34)
= 102
or
... if you don't know what an arithmetic sequence is:
day1 = 12
day2 = 14
day3 = 16
day4 = 18
day5 = 20
day6 = 22
add them up to get 102
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