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Answer to Question #282657 in Algebra for nile
Question #282657
what is the sum of the first 40 terms whose general term is An=5n+10
Expert's answer
"A1 = 5\u00d71 + 10 = 15,"
"A40 = 5\u00d740 + 10 = 210."
The sum of the first 40 terms is:
"S40 = 40\u00d7(15 + 210)\/2 = 4,500."
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