Practical Arithmetic, Embracing the Science of Numbers and the Art of Computation, for Schools and Academies (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1868 Excerpt: ...Hence, The Amouni=the Base + Uie Percentage. f The Difference--he Base--the Percentage. The Awe=the Amt--the Percentage, or the JDif.-t-thePercentage. The Percentage=lhe Am'i--the Base, or the Base--the Difference. 251. The rate per cent, may be expressed by a decimal or by a common fraction; thus, Decimals. Common fraction. Lowest terms. 1 of a number is.01 ofit = 10, or Ja of it. 75$ of a number is.75 ofit = f"oso, or J ofit 100 of a number is 1.00 ofit = -JJ, or once the No. % of a number is.005 ofit = i, or J-, ofit. % of a number is.0075 ofit = _, or jfs ofit. 1% of a number is.075 ofit =- or 4?-a ofit. Pboblem 1. 2i)2. Given the base and rate per cent, to find the percentage. 1. Find B% of 256 bushels of wheat? omava. analysis IST.--8=.08. Therefore, 8 of.08 25G . is.08 of 256=20.48 bushek 20.486 . Ans. Analysis 2 .-- % = T B) or &. Oh.atioit. Therefore, 8$ of 256 . is 32j of 256. 3aA=20.48 5-. bushels=20.48 6-. 2' 1 . Analysis Sd.--If =25 5 .1= 100 = 256 u-. af 206 b t.=2.56 iu., and 8=8 times 2.56 1$= 2.56 bu. bu.=20A8bu. 8 = 20.486-. Rule 1.--Multiply the base by the rate ft, decimally ex- pressed. Rule 2.---Fine/ / ai /ar / / - late which the rate % it of 100. Note.--The base 1 always 100 per cent. 6. 18$ of 8972?.ans. 7. 4$ of 48? 8. 7ij$ of 345? Ans. 9. 8$of 6372? 10. 22$ of $345? ans. "What is 1. 6$ of 946? Ans. C6.76. 2. 5$ of $4G2? Ans. $23.10. 3. 7$ of $846? Ans. $59.22. 4. 8$ of 325? / . 26. 5. 11$ of $111? A us. $12.21. 11. A man having...