Key to Ray's New Arithmetics: Intellectual and Practical

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Van Antwerp, Bragg & Company, 1879 - Arithmetic - 224 pages
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Page 10 - To reduce a fraction to its lowest terms, divide both terms by their greatest common divisor.
Page 218 - Ans. 1385'.4456 sq.ft. 2. Find the area of a space on which a horse may graze, when confined by a cord 7^ rods long, one of its ends being fixed at a certain point Ans. 1A. 16.7 15 P. ART. 318. To FIND THE DIAMETER OF A CIRCLE, WHEN THE AREA is GIVEN/ Rule. — Divide the area by .7854 ; the square root of the quotient will be the diameter. 1. The area of a circle is 962.115: what its diameter and circumference? Ans. diam. 35 : circum. 109.956 2. What length of halter will fasten a horse to a post...

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