If you save two pennies on January 1, four pennies on January 2, six pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal without commas.

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Question

Finnegan Snow

Mathematics

10 November, 21:36

If you save two pennies on January 1, four pennies on January 2, six pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal without commas.

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Answers (1)

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Bridge · Answer 1

The answer is

1J, 2J, 3J, ... 29D, 30D, 31D = 365 days

2 4 6 ...

let be S the value of entire savings

S = Sum 2K = 2 Sum K = 2 [365 (365+1) / 2],

1
because Sum K = n (n+1) / 2

1
finally S = 133590 pennies

If you save two pennies on January 1, four pennies on January 2, six pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal without commas.... ?

If you save two pennies on January 1, four pennies on January 2, six pennies on January 3, and continue this pattern for one year (not a leap year), what will be the value of your entire savings, in dollars, at the end of that one year? Express your answer as a decimal without commas.

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