Asked by Chris
Geometric And Arithmetic Sequences
a store manager plans to offer discounts on some sweater acording to this sequence: $48, $36, $27, $20.255,... What would be the price of a sweater after 8 discounts? Is this an arithmetic or geometric sequence?
a store manager plans to offer discounts on some sweater acording to this sequence: $48, $36, $27, $20.255,... What would be the price of a sweater after 8 discounts? Is this an arithmetic or geometric sequence?
Answers
Answered by
Steve
is there a common difference? -12,-9,... Not an AP
is there a common ratio? 3/4, 3/4, 3/4, ... Looks like a GP
So, now the question is, is $48 the original price, or the price after one discount?
One you know that, you can use (3/4)^7 or (3/4)^8
is there a common ratio? 3/4, 3/4, 3/4, ... Looks like a GP
So, now the question is, is $48 the original price, or the price after one discount?
One you know that, you can use (3/4)^7 or (3/4)^8
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