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

Mathematics

1 answer:

sertanlavr [38]3 years ago

5 0

Answer:

Step-by-step explanation:

The nth term of arithmetic sequence is $a_n=a_1+d(n-1)$

So:

$a_{15}=a_1+d(15-1)\\\\53=-3+14d\\\\56=14d\\\\d=\dfrac{56}{14}=4$

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jeyben [28]

Answer:

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Step-by-step explanation:

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