A Complete System of Practical Arithmetic, with Various Branches in the Mathematics

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author, 1800 - 519 sider
 

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Side 178 - To reduce a mixed number to an improper fraction. RULE. Multiply the whole number by the denominator of the fraction, and to the product add the numerator for a new numerator, and place it over the denominator.
Side 286 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Side 136 - Find the value of that commodity whose quantity is given ; then find what quantity of the other, at the rate proposed, you may have for the same money.
Side 82 - If the quantities of matter, in any two or more bodies put in motion, be equal, the forces wherewith they are moved will be in proportion to their velocities. 2. If the velocities of these bodies be equal, their forces will be directly as the quantities of matter contained in them.
Side 94 - If a footman travel 240 miles in 12 days, when the days are 12 hours long; how many days will he require to travel 720 miles, wh-jn the days are 16 hours long?
Side 178 - To reduce an improper fraction to its equivalent whole or mixed number. RULE. Divide the numerator by the denominator...
Side 178 - RULE. Multiply all the numerators together for a new numerator, and all the denominators for a new denominator: then reduce the new fraction to its lowest terms.
Side 180 - ... multiply each numerator by all the denominators, except its own, for a new numerator, and under it write the common denominator.
Side 136 - When one has goods at a certain price ready money, but in barter advances it to something more, say, As the ready money price of the one ; is to its bartering price ; ; so is the ready money price of the other to its bartering, price: then the quantity of the latter commodity may be found, cither from the ready money or bartering price.

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