Arithmetic, Both in the Theory and Practice: Made Plain and Easy in All Common and Useful Rules, Both in Whole Numbers and Fractions, Vulgar and Decimal: Also Interest Simple & Compound ... With the Addition of Several Algebraical Questions

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J. Gray & G. Alston, 1765 - 416 sider
 

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Side 399 - A man was hired 50 days on these conditions. — that, for every day he worked, he should receive $ '75, and, for every day he was idle, he should forfeit $ '25 ; at the expiration of the time, he received $ 27'50 ; how many days did he work...
Side 11 - 3765 is a decimal consisting of four places; consequently, 1 with four ciphers annexed ( 10000) is its proper denominator. Any decimal may be expressed in the form of a common fraction by writing under it its proper denominator.
Side 247 - What length of cord will fit to tie to a cow's tail, the other end fixed in the ground, to let her have liberty of eating an acre of grass, and no more, supposing the cow and tail to be 5 yards and a half ? Ans.
Side 403 - If you take away 5 from my years, and divide the remainder by 8, the quotient will be $ of your age; but if you add 2 to your age, and multiply the whole by 3, and then subtract 7 from the product, you will have the number of the years of my age. What was the age of the father and son ? Ans., 53 and 18.
Side 138 - If four magnitudes are in proportion, the product of the two extremes is equal to the product of the two means.
Side 411 - ... every day's journey : in what time will they meet with one another ? 92. Again, two travellers fet out at the fame time from two cities, the one from A, and the other from B, which are 120 miles...
Side 411 - ... a mile to every day's journey : in what time will they meet with one another ? 92. Again, two travellers fet out at the fame time from two cities, the one from A, and the other from B, which are...
Side 400 - Цоте are 140 Miles : A Traveller fets out at the fame time from each of the two Cities, one goes 8 Miles a Day, the other 6. In how many Days from their firft fetting out will they meet one another, and how many Miles did each of them go ? ... 14.
Side 132 - ... 1. The first term; 2. The last term; 3. The number of terms; 4. The common difference; 5. The sum of all the terms.
Side 136 - A man is to receive £360 at 12 several payments, each to exceed the former by £4, and is willing to bestow the first payment on any one that can tell him what it is : what will that person have for his pains ? Ans.

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