A Plain and Comprehensive Treatise of Decimals and Mensuration. ...: Containing. An application of decimals to all the leading branches of arithmetic .... Interest in all its cases .... The extraction and uses of the square and cube roots .... Duodecimals, or cross-multiplication .... Mensuration of all kinds of superficies and solids ... And to accommodate the above work, is added. An introduction to practical music; together with the construction of organ pipes, spinets, &c. The whole rendered familiar to the meanest capacity, Volum 6

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editor, 1766 - 309 sider
 

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Del 2
136
Del 3
155
Del 4
161
Del 5
165
Del 6
166
Del 7
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Del 8
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Del 12
223
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Del 17
253
Del 18
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Del 19
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Del 9
191
Del 10
216
Del 11
221

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Side 21 - Multiply all the numerators together for a new numerator, and all the denominators together for a new denominator.
Side 42 - If a man performs a journey in 6 days, when the day is 8 hours long; in what time will he do it, when the day is 12 hours long ? Anfw.
Side 22 - Multiply the given decimal by the number of parts in the next less denomination, and point off as many decimal places as there are in the given decimal.
Side 146 - ... superior. 3. In the same manner, multiply the multiplicand by the inches in the multiplier, and write the result of each term, one place more to the right hand of them, in the multiplicand.
Side 14 - Divifor ; if there be not, make them fo many, or more, by annexing of Cyphers. In dividing of whole or mix'd Numbers, if there be a Remainder, you may bring down more Cyphers, and, by continuing your Divifion, carry the Quotient to as many Places- of Decimals as you pleafe.
Side 110 - Seek the greatest square number in the first point, towards the left hand, placing the square number under the first point, and the root thereof in the quotient...
Side 184 - If a piece of timber be 22 inches deep, and 15 inches broad, how much in length will make a foot?
Side 151 - To measure a parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area, or superficial content.
Side 25 - ... parts that are contained in the greater denomination, to which the decimal is to be brought ; and the quotient is the decimal sought.
Side 183 - Multiply the A.rea of the Wall by the Number of half Bricks the Thickness the Wall is of; the...

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