SOLUTION: The sum of the arithmetic is 192 with a last term of 27 and a common difference of 2. Find the number of terms.
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Question 826126: The sum of the arithmetic is 192 with a last term of 27 and a common difference of 2. Find the number of terms.
Answer by tommyt3rd(5050) (Show Source): You can put this solution on YOUR website!
Setting up our equations we find:
and
Solving the system by substitution leads to two possible solutions, both valid.
,
or
,
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