The first term of the arithmetic sequence is -3 and the 15th term is 53. What is the common difference of the sequence?

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2016-09-26 00:57:49

a1+d(n-1) -3+d(15-1)=53 14d=56 d=4

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ANSWERS

2016-09-26 00:57:49

a1+d(n-1) -3+d(15-1)=53 14d=56 d=4

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