If you save three pennies on January 1, six pennies on January 2, nine 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.

Question

Mathematics

Urijah Bray

6 June, 12:45

If you save three pennies on January 1, six pennies on January 2, nine 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.

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Barbara Oconnor · Answer 1

The pennies increase by 3 every day. January 1st you have three, January 2nd you have six, January 3rd you have nine. There are 365 days in a year. Every day there will be three pennies added. 365 times 3 is 1095. You subtract nine pennies from that for the first day. You are left with 1086 pennies. That is the equivalent of $10.86.