I know :(D - (D * .1)) + Bal = Tot. But I'm having trouble solving for D. It's been over 15 years since school?
回答 (2)
2008-12-21 9:57 am
✔ 最佳答案
But what is the question ? !!!!!!As it stands, can be written as :-
0.9 D + B = T
2008-12-21 10:03 am
[D - (D * 0.1)] + Bal = Tot
D - 0.1D + Bal = Tot
D - 0.1D = Tot - Bal
D(1 - 0.1) = Tot - Bal
D = (Tot - Bal)/(1 - 0.1)
D = (Tot - Bal)/0.9
D - 0.1D + Bal = Tot
D - 0.1D = Tot - Bal
D(1 - 0.1) = Tot - Bal
D = (Tot - Bal)/(1 - 0.1)
D = (Tot - Bal)/0.9
收錄日期: 2021-05-01 11:39:49
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