SOLUTION: Find S30: {50,45,40,35...}
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Question 1032906: Find S30: {50,45,40,35...}
Answer by ikleyn(52790) (Show Source): You can put this solution on YOUR website!
.
Arithmetic progression with the first term 50 and the difference -5.
The sum of the first 30 members.
Apply the formula from the lesson Arithmetic progressions in this site.
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