A Mathematical Solution Book Containing Systematic Solutions to Many of the Most Difficult Problems: Taken from the Leading Authors on Arithmetic and Algebra, Many Problems and Solutions from Geometry, Trigonometry and Calculus, Many Problems and Solutions from the Leading Mathematical Journals of the United States, and Many Original Problems and SolutionsKibler, 1888 - 481 σελίδες |
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Σελίδα 39
... gain on the whole ? 9. How many seconds in a Dionysian Period ? 10. How many seconds in the month of February , 1892 . 11. How many seconds in the circumference of a wagon wheel ? 12. How long would it take a body to move from the earth ...
... gain on the whole ? 9. How many seconds in a Dionysian Period ? 10. How many seconds in the month of February , 1892 . 11. How many seconds in the circumference of a wagon wheel ? 12. How long would it take a body to move from the earth ...
Σελίδα 40
... gain ? Ans . $ 43.09 + gain . 24. How many steps , 2 ft . 8 in . each , will a man take in walk- ing a distance of 15 miles ? Ans . 29700 . 25. How many hair's width in a 40 ft . pole , if 48 hair's width equals 1 line ? 26. How many ...
... gain ? Ans . $ 43.09 + gain . 24. How many steps , 2 ft . 8 in . each , will a man take in walk- ing a distance of 15 miles ? Ans . 29700 . 25. How many hair's width in a 40 ft . pole , if 48 hair's width equals 1 line ? 26. How many ...
Σελίδα 62
... gain . 100 % + 25 % = 125 % = selling price of horse , and II.4 . $ 150 selling price of horse ; $ 150 , 1 % of $ 150- $ 1.20 , and 5 . .. 125 % 6 . 7 . 100 % 100 times $ 1.20 $ 120 - cost of horse . III . .. The horse cost $ 120 . one ...
... gain . 100 % + 25 % = 125 % = selling price of horse , and II.4 . $ 150 selling price of horse ; $ 150 , 1 % of $ 150- $ 1.20 , and 5 . .. 125 % 6 . 7 . 100 % 100 times $ 1.20 $ 120 - cost of horse . III . .. The horse cost $ 120 . one ...
Σελίδα 68
... gain % ? 11. The population of a city whose gain of inhabitants in 5 years has been 25 % , is 87500 ; what was it 5 years ago ? Ans . 70000 . 12. The square root of 2 is what % of the square root of 3 ? Ans . √6X331 % . 13. A laborer ...
... gain % ? 11. The population of a city whose gain of inhabitants in 5 years has been 25 % , is 87500 ; what was it 5 years ago ? Ans . 70000 . 12. The square root of 2 is what % of the square root of 3 ? Ans . √6X331 % . 13. A laborer ...
Σελίδα 69
... gain , but had it cost him $ 49 more he would have lost 15 % by selling at the same price ; what did the goods cost him ? Ans . $ 119 . 17. If an article had cost 20 % more , the gain would have been 25 % less ; what was the gain ...
... gain , but had it cost him $ 49 more he would have lost 15 % by selling at the same price ; what did the goods cost him ? Ans . $ 119 . 17. If an article had cost 20 % more , the gain would have been 25 % less ; what was the gain ...
Συχνά εμφανιζόμενοι όροι και φράσεις
acres Algebra altitude amount annuity axis Benjamin Peirce cents chord circle circumference cone convex surface cost cows cube cubic curve cycloid cylinder Descartes diagonal diameter discount distance divided ellipse equal equation feet find the area find the length find the volume formula fraction frustum gain Geometry given hand moves past Hence horse hour hand hyperbola inches interest investment latus rectum linear side longitude lower base mathematicians mathematics method minute hand multiply nine-point circle o'clock orthocenter par value parabola parallel Peirce perpendicular plane polygon prismatoid Prob problem Professor proposition quotient radius ratio right angles rods Rule.-Multiply segment selling price senary similar triangles slant height sold solid solution sphere spherical square root straight line subtract Sylvester tangent theorem tion triangle Whence width yards
Δημοφιλή αποσπάσματα
Σελίδα 378 - If a straight line meet two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Σελίδα 24 - Multiplication is the process of taking one number as many times as there are units in another.
Σελίδα 410 - Two triangles which have an angle of the one equal to an angle of the other may be placed with their equal angles in coincidence. Let ABC, ADE, be the two triangles having the common angle A ; then, ABC AB X AC...
Σελίδα 474 - And you, ye undevelopable scrolls ! Above the host wave your emblazoned rolls, Ruled for the record of his bright inventions. Ye Cubic surfaces ! by threes and nines Draw round his camp your seven-and-twenty lines — The seal of Solomon in three dimensions.
Σελίδα 196 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 453 - Dimensions," in which he shows, for instance, that if a fourth dimension were added to space, a closed material surface (or shell) could be turned inside out by simple flexure without either stretching or tearing.
Σελίδα 371 - Now the mathematics are peculiarly well adapted for this purpose, on the following grounds : 1. Every term is distinctly explained, and has but one meaning, and it is rarely that two words are employed to mean the same thing. 2. The first principles are self-evident, and, though derived from observation, do not require more of it than has been made by children in general. 3. The demonstration is strictly logical, taking nothing for granted except the self-evident first principles, resting nothing...
Σελίδα 453 - He was awarded the Gold Medal of the Royal Astronomical Society in 1954.
Σελίδα 359 - The hour and minute hands of a watch are together at 12 o'clock ; when are they next together ? Ans.
Σελίδα 453 - Elementary Theorems Relating to the Geometry of a Space of Three Dimensions and of Uniform Positive Curvature in the Fourth Dimension," published in Borchardt's Journal, Bd.