ArithmeticU.S. Government Printing Office, 1913 - 132 σελίδες |
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Σελίδα 10
... tons , 4 hundredweight , 36 pounds . There are four primary operations of arithmetic , namely , addition , subtraction , multiplication , and division . They are called the Funda- mental Rules . ADDITION OF SIMPLE NUMBERS . The sign of ...
... tons , 4 hundredweight , 36 pounds . There are four primary operations of arithmetic , namely , addition , subtraction , multiplication , and division . They are called the Funda- mental Rules . ADDITION OF SIMPLE NUMBERS . The sign of ...
Σελίδα 18
... ton ( 2,240 pounds ) of this coal ? Answer , 32,480,000 units . 23. The mechanical equivalent of a heat unit is 778 foot pounds . In other words , the energy expended in raising the temperature of 1 pound of pure water from 62 ° to 63 ...
... ton ( 2,240 pounds ) of this coal ? Answer , 32,480,000 units . 23. The mechanical equivalent of a heat unit is 778 foot pounds . In other words , the energy expended in raising the temperature of 1 pound of pure water from 62 ° to 63 ...
Σελίδα 19
... tons of coal equally between two firerooms , how much will each have ? Answer 4 tons . Why ? Answer 5 . Why ? 2. How many times is 2 contained in 10 ? The process by which the preceding examples are solved is called division ...
... tons of coal equally between two firerooms , how much will each have ? Answer 4 tons . Why ? Answer 5 . Why ? 2. How many times is 2 contained in 10 ? The process by which the preceding examples are solved is called division ...
Σελίδα 23
... ton , how many tons can be bought for $ 894 ? Answer , 298 tons . 16. If a certain sized brass globe valve costs $ 4 , how many can be bought for $ 140 ? Answer , 35 valves . 17. If a bunker contains 64 tons of coal , how long will it ...
... ton , how many tons can be bought for $ 894 ? Answer , 298 tons . 16. If a certain sized brass globe valve costs $ 4 , how many can be bought for $ 140 ? Answer , 35 valves . 17. If a bunker contains 64 tons of coal , how long will it ...
Σελίδα 25
... tons of coal from a bunker in 8 hours . How many tons did each man shovel in 1 hour ? Answer , 2 tons . 12. The revolution counter of an engine registered 10,140 , showing that that number of revolutions of the shaft had been made in 1 ...
... tons of coal from a bunker in 8 hours . How many tons did each man shovel in 1 hour ? Answer , 2 tons . 12. The revolution counter of an engine registered 10,140 , showing that that number of revolutions of the shaft had been made in 1 ...
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 hundredweight 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 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 taper ten-thousandths tens tenths third thousand thousandths threads per inch tons of coal total number trial divisor triangle units 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.