What is the sum of the first 10 terms of the arithmetic sequence in which the 4th term is 10 and the 7th term is 19??

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asked Apr 28, 2017 180k views

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Niels Joaquin · Answer 1 · 2017-05-03T04:33:12+0000

4th is 13 7th is 19 , that equals 6 difference, divide by two, 3 between each point. So now 3rd is 10, 2nd is 7, 1st is 4. Now add the first 10, 4+7+10+13+16+19+22+25+28+31=175

What is the sum of the first 10 terms of the arithmetic sequence in which the 4th term is 10 and the 7th term is 19??

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