The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ...
The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ...
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In our eReader you can find the full English version of the book. Read The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ...
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To quickly assess the difficulty of the text, read a short excerpt:
Applying these principles to the formulae in (238), and putting D for A y the changes are effected.
Thus p~br will remain the same, since — p = —br is the same asj>=W. A = b+br becomes D = 6— &r, by attributing the — PERCENTAGE. 155 sign to the factor r. (3), which is p = ^4—6, becomes — p = D—b, and multiplying each member by —1 to change the sign of p, p = b-D. (12), which is A = ?i*±!2, becomes D = -P( l ~ r \ or T — T D = — -, since changing the sign of numerator and denominator T is equiva...lent to multiplying or dividing both by —1. In like man- ner deduce all the others. It will afford a check on the correctness of the work to deduce the particular formula by thus changing signs, and also from the two formulae, p = br, and D = b—br. Of course the results must agree.
13. What per cent of a number is £ of it ? J of it ? f ?
£ ? 1 i times the number ? 2 times ?
14. 20# is what part of a number? 50#? 33^ ? 100#?
200#? 75#? 10#? * - 15. 32 is what per cent of 400 ?
What to read after The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ...?
You can find similar books in the "Read Also" column, or choose other free books by Edward Olney to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Applying these principles to the formulae in (238), and putting D for A y the changes are effected.
Thus p~br will remain the same, since — p = —br is the same asj>=W. A = b+br becomes D = 6— &r, by attributing the — PERCENTAGE. 155 sign to the factor r. (3), which is p = ^4—6, becomes — p = D—b, and multiplying each member by —1 to change the sign of p, p = b-D. (12), which is A = ?i*±!2, becomes D = -P( l ~ r \ or T — T D = — -, since changing the sign of numerator and denominator T is equiva...lent to multiplying or dividing both by —1. In like man- ner deduce all the others. It will afford a check on the correctness of the work to deduce the particular formula by thus changing signs, and also from the two formulae, p = br, and D = b—br. Of course the results must agree.
13. What per cent of a number is £ of it ? J of it ? f ?
£ ? 1 i times the number ? 2 times ?
14. 20# is what part of a number? 50#? 33^ ? 100#?
200#? 75#? 10#? * - 15. 32 is what per cent of 400 ?
What to read after The Science of Arithmetic: for High Schools, Normal Schools, Preparatory Departments to Colleges ...?
You can find similar books in the "Read Also" column, or choose other free books by Edward Olney to read onlineMoreLess
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