Arithmetic by Grades for Inductive Teaching, Drilling and Testing, Βιβλίο 8

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Σελίδα 107 - Yra. 3 per cent. 4 per cent. 5 per cent. 6 per cent. 7 per cent. 1.
Σελίδα 59 - If two men start from the same place, and travel in opposite directions, the one traveling at the rate of 3 miles an hour, and the other at the rate of 4 miles an hour, how far apart will they be at the end of 5 hours ? 11.
Σελίδα 38 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Σελίδα 105 - Rule — From the square of the hypothenuse subtract the square of the given side, and Fig.
Σελίδα 92 - New York North Carolina North Dakota Ohio Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming LLL KAT°.
Σελίδα 112 - Prepared expressly to accompany Hill's Lessons in Geometry, and containing, in a neat wooden box, a seven-inch rule with a scale of millimeters ; pencil compasses, with pencil and rubber ; a triangle ; and a protractor. Retail price, 40 cents ; for introduction, 30 cents. A specimen copy of the Lessons in Geometry with the Drawing Case will be sent, postpaid, to any teacher on receipt of $1.00.
Σελίδα 105 - The contents of the frustum of a pyramid or cone are equal to the sum of the areas of the two bases plus the square root of their product, multiplied by a third of the altitude.
Σελίδα 99 - The ratio of the weight of a substance in air to that of an equal volume of water is called the specific gravity of the substance...

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