SOLUTION: Heather is collecting dimes. She saves 1 dime on the 1st day, 2 dimes on the 2nd day & 3 dimes on the third day. If this pattern continues, how much money will Heather have saved a
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Question 1006532: Heather is collecting dimes. She saves 1 dime on the 1st day, 2 dimes on the 2nd day & 3 dimes on the third day. If this pattern continues, how much money will Heather have saved at the end of 30 days?
* Please write in Algebric form, so I can apply the same method to other problems similar to this one. I really appreciate your help. Thanks!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
You have:
Sum = 10*( 1 + 2 + 3 + 4 + . . . 30 )
There's a formula for this sequence:
Sum( 1 through n ) =
Testing for ,
OK
With
sum =
sum =
sum = cents
$46.50 after 30 days
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