The first term of an arithmetic sequence is 6 and the common difference is 4. How many terms must be added together until the sum of the terms is equal to 510?
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Answer:
n = 15
Step-by-step explanation:
Sn = n/2(2a + (n-1)d)
given that
a = 6 d = 4 Sn = 510
we take the positive value of n = 15
therefore the number of terms of the AP to get sum of 510 is 15
verification
Hope you get your answer
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