Business, 29.08.2019 14:00 lilbit404

Suppose your business has a special checking account used just for paying the phone bill. the balance is $740.00 this month. next month the balance will be $707.60, after that it will be $675.20, and on the third month the balance will be $642.80. write an explicit formula to represent the balance in the account as an arithmetic sequence. how many months can you pay your phone bill without depositing any more money in the account?

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As you can see, the difference between two consecutive months is :
707.60-740=-32.4
and it is the same for third-second and fourth-third.
So we have indeed an arithmetic sequence where d=-32.4
Now, we have a1=740
so the general term of the sequence:
an = a1 + (n-1)d an = 740 + (n-1)*(-32.4)
an=772.4 -32.4n
an tells us how much money there is in the account in the nth month.
now we need to check when an=0 (the money is over)
772.4 = 32.4n n = 23.8
but this is not an integer and we are counting months so we will take 23 cause clearly for 24 we will have minus!
so n = 23. -> the account is good without depositing for 23 months (including the first)

Answer from: Quest

in 2001, dell computer became the world’s largest personal computer vendor, continuing to

gain market share and post profits in an industry struggling with slumping sales and billions of

dollars in losses. dell sells 90% of its pcs directly to the final customer, largely bypassing the

reseller channel that accounts for most of the world’s pc sales. this direct customer relationship

is the key to dell’s business model, and provides distinct advantages over the indirect sales

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services. in addition, dell’s pcs are built to customers’ specifications upon receipt of an order,

giving dell additional advantages over indirect pc vendors who must try to forecast demand and

ship products based on those forecasts. dell’s direct sales and build-to-order model has achieved

superior performance in the pc industry in terms of inventory turnover, reduced overhead, cash

conversion, and return on investment (kraemer, et al., 2000).

explanation:

Answer from: Quest

because she sucked. : )

(but so does trump, don't @ me)

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