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OpenStudy (anonymous):
Jill arranges quarters in stacks of increasing powers of 2, starting with the zeroth power (20). If she ends up with six stacks, how many coins has she used?
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OpenStudy (anonymous):
Stack 1: 2^0 = 1 quarter Stack 2: 2^1 = 2 quarters Keep going like this until Stack 6 = 2^5 = 32 quarters Add up 1 + 2 + 4 + 8 + 16 + 32 = 63 quarters.
OpenStudy (anonymous):
@Klip when you go to pet a dog.. . . . . . . . . .. . . . . . . . . .. ...... and it growls at you.
OpenStudy (anonymous):
LOL. Right?
OpenStudy (anonymous):
cx
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