The Model Arithmetic for Commercial Colleges and Department Schools

The Model Arithmetic for Commercial Colleges and Department Schools

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1895 edition. Excerpt: ...16. On Monday morning, Apr. 29, 1895, Harvey Brown commenced working for George Wilson at $60 per working-month. He boarded with his employer, paying $3.50 per week. May 25, Brown was paid cash $35, and on June 6, $40. During the term of his employment Brown lost 4 days. What sum was due Brown on the evening of July 3, 1895? PERCENTAGE. 289. Percentage embraces that large class of computations in which one quantity is considered as hundredths of another quantity. 290. The term Per Cent (%) is derived from the Latin phrase per centum (by the hundred) and means "hundredths." Per Cent rates are simply decimal fractions having 100 for the denominator, and may be written decimally, or as common fractions in lower terms. Thus, 25% =-j, -, and may be written.25, or may be reduced to and considered as. 291. Some per cent rates are best treated as common fractions, especially those that are aliquot parts of 100. Following is a table of these, which should be thoroughly committed. Other per cent rates are best expressed as decimals. 292. To express any common fraction as a per cent rate, annex two ciphers to the numerator and divide the result by the denominator. Thus, -= S--S.--371%. Conversely, -to change any per cent rate to a fraction, supply the denominator, 100, and reduce to lowest terms; thus, 28% = rffr = ft. 293. To express any per cent rate as a Decimal, point off two places; thus, 3% =.03; 2 % =.02; 6% =.006; 5.7%=.057, etc. 294. The Terms in percentage computations are three: --I. Base, or the quantity to which the per cent rate applies. II. Rate, or the number of hundredths expressed by the per cent rate. Ill Percentage, or the product obtained by multiplying the Base by the Kate expressed as a fraction or more

Product details

  • Paperback | 62 pages
  • 189 x 246 x 3mm | 127g
  • United States
  • English
  • black & white illustrations
  • 1236780175
  • 9781236780171