An Elementary Treatise on Arithmetic: Taken Principally from the Arithmetic of

Hilliard and Metcalf, 1825 - 144 σελίδες

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Σελίδα 36 - It will be seen by the above section that if both the numerator and denominator be multiplied by the same number, the value of the fraction will not be altered...
Σελίδα 126 - A hare starts 40 yards before a grey-hound, and is not perceived by him till she has been up 40 seconds : she scuds away at the rate of ten miles an hour, and the dog, on view...
Σελίδα ii - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Σελίδα 213 - To divide 100 into two such parts, that the sum of their square roots may be 14. Ans. 64 and 36 14.
Σελίδα 123 - How much gold of 15, of 17, and of 22 carats fine, must be mixed with 5 oz. of 18 carats fine, so that the composition may be 20 carats fine ? Ans.
Σελίδα 135 - The decestere is the tenth of a stere. The quadrant of the circle generally is divided like the fourth part of the meridian, into 100 degrees, each degree into 100 minutes, and each minute into 100 seconds, &c. so that the same number, which expresses a portion of the meridian, indicates also its length, which is a great convenience in navigation. The coin also is comprehended in this system, and made to conform to their unit of weight. The weight of the franc, of which one tenth is alloy, is fixed...
Σελίδα 120 - Multiply the sum of the two extremes by the number of terms, and half the product will be the sum of all the terms.
Σελίδα 208 - One hundred stones being placed on the ground in a straight line, at the distance of 2 yards from each other, how far will a person travel who shall bring them one by one to a basket, placed at 2 yards from the first stone ? Ans.
Σελίδα 27 - We shall have to substitute for them, £| and || ; whence we may conclude that 4 exceeds |, hut only by ^. 99. When it is required to subtract a fraction from an integer, it is sufficient to change one of the units of that integer into a fraction having the same denominator as the fraction to be subtracted; in the rest of the operation there is no difficulty. If it be required, for example, to subtract | from 1, we write -| instead of 1, and say that j taken from | leaves the remainder 1.

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