ArithmeticU.S. Government Printing Office, 1913 - 132 σελίδες |
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Σελίδα 70
... volume , 2,091 parts oxygen to 7,909 parts nitrogen . By weight , 2,316 parts oxygen to 7,685 parts nitrogen . How many cubic feet oxygen are there in a space holding 250 cubic feet of air ? Answer , 52.275 cubic feet . 42. How many ...
... volume , 2,091 parts oxygen to 7,909 parts nitrogen . By weight , 2,316 parts oxygen to 7,685 parts nitrogen . How many cubic feet oxygen are there in a space holding 250 cubic feet of air ? Answer , 52.275 cubic feet . 42. How many ...
Σελίδα 111
... volume is a cube , each of whose edges is equal in length to the unit . The volume is expressed by the number of times it will contain a unit of volume . Thus , if the unit of length is 1 inch , the unit of volume will be a cube whose ...
... volume is a cube , each of whose edges is equal in length to the unit . The volume is expressed by the number of times it will contain a unit of volume . Thus , if the unit of length is 1 inch , the unit of volume will be a cube whose ...
Σελίδα 112
... volume . The weight = 603.19 X.28 = 168.89 pounds , answer . A D B Figure 40 . Example 2 : Find the cubical contents of a hex- agonal prism ( fig . 40 ) 12 inches long , each of whose edges is 1 inch long . Solution . - In order to ...
... volume . The weight = 603.19 X.28 = 168.89 pounds , answer . A D B Figure 40 . Example 2 : Find the cubical contents of a hex- agonal prism ( fig . 40 ) 12 inches long , each of whose edges is 1 inch long . Solution . - In order to ...
Σελίδα 113
... volume = 15.6X ( 8 ÷ 3 ) = 41.6 cu . in . Ans . Example 2 : What is the volume of a cone whose altitude is 18 inches and whose base is 14 inches in diameter ? Solution . - Area of base = = - 142 14 X. 7854 153.94 square inches . Hence ...
... volume = 15.6X ( 8 ÷ 3 ) = 41.6 cu . in . Ans . Example 2 : What is the volume of a cone whose altitude is 18 inches and whose base is 14 inches in diameter ? Solution . - Area of base = = - 142 14 X. 7854 153.94 square inches . Hence ...
Σελίδα 114
... volume of the frustum of a pyramid or cone : RULE : Add together the areas of the upper and lower bases and the square root of the product of the two areas ; multiply the sum by one- third of the altitude . Example 1 : Given , a frustum ...
... volume of the frustum of a pyramid or cone : RULE : Add together the areas of the upper and lower bases and the square root of the product of the two areas ; multiply the sum by one- third of the altitude . Example 1 : Given , a frustum ...
Συχνά εμφανιζόμενοι όροι και φράσεις
altitude annex a cipher Answer apples base boiler bought bunker called cents left cipher circle circumference column common fraction contained cost cube root cubic feet cubic foot cubic inches cylinder decimal orders decimal places decimal point Divide dividend division dollar engine equal expressed fireroom frustum gallons greatest common divisor Hence horsepower hundredths improper fraction inches in diameter integer lathe lead screw least common multiple length lowest terms miles millionths minuend minutes mixed number multiplicand Multiply ounces period perpendicular piece pounds prime factors prime number pump quotient ratio Reduce remainder result revolutions revolutions per minute right angle rods RULE second figure ship sides simple fraction simple numbers Solution specific gravity square feet square inches square root steam subtract surface tank ten-thousandths tens tenths third thousand thousandths threads per inch tons of coal total number trial divisor triangle valve weighs write yards
Δημοφιλή αποσπάσματα
Σελίδα 15 - Multiplication is the process of taking one number as many times as there are units in another.
Σελίδα 26 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Σελίδα 28 - TROY WEIGHT. 24 grains (gr.) = 1 pennyweight (pwt.). 20 pennyweights = 1 ounce (oz.). 12 ounces = 1 pound (lb.). 351. Apothecaries' weight is used in mixing medicines and in selling them at retail. APOTHECARIES
Σελίδα 118 - Divide the continued product of the mean effective pressure in pounds per square inch, the length of the stroke in feet,, the area of the piston in square inches, and the number of strokes per minute, by 33,000 ; the result will be the horsepower.
Σελίδα 30 - COUNTING. 12 units or things make 1 dozen. 12 dozen " 1 gross. 12 gross " 1 great gross. 20 units
Σελίδα 33 - Write the remaining numbers in a horizontal line, and divide by any prime number that will exactly divide two or more of them, placing the quotients and the undivided numbers in a line beneath.
Σελίδα 115 - 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 87 - ... 9,801; with three figures 999, and 999' = 998,001; with four figures 9,999, and 9,999' = 99,980,001, etc. In each of the above it will be noticed that the square of the number contains just twice as many figures as the number. In order to find the square root of a number, the first step is to find how many figures there will be in the root. This is done by pointing off the number into periods of two figures each, beginning at the right.
Σελίδα 19 - The dividend is the number to be divided. The divisor is the number by which we divide.
Σελίδα 26 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq.