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What’s the answer to this?
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What’s the answer to this?

What’s the answer to this?-example-1
User Mark Struzinski
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1 Answer

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This is a arithmetic sequence with an equation of...

a(n) = 1.5 - 0.05(n-1) with a first term of 1.5 and a common difference of -0.05

Input this into the calculator to find the sum of the first twenty terms.

20

∑ 1.5-0.05(n-1)

n=1

You will get 20.5.

answer: 20.5

User Dmila Ram
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7.1k points
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