Advanced ArithmeticAmerican book Company, 1905 - 253 σελίδες |
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Σελίδα 39
... in the radius of the earth , having given that it is the least number that is divisible by 2 , 3 , 4 , 5 , 6 , 9 , 10 , 11 , 12 . CASTING OUT NINES 60. The check on arithmetical operations by FACTORS AND MULTIPLES 39.
... in the radius of the earth , having given that it is the least number that is divisible by 2 , 3 , 4 , 5 , 6 , 9 , 10 , 11 , 12 . CASTING OUT NINES 60. The check on arithmetical operations by FACTORS AND MULTIPLES 39.
Σελίδα 44
... earth if it takes a ray of light from the sun 8 min . 2 sec . to reach the earth . 18. A cannon is 2 mi . distant from an observer . How long after it is fired does it take the sound to reach the observer if sound travels 1090 ft . per ...
... earth if it takes a ray of light from the sun 8 min . 2 sec . to reach the earth . 18. A cannon is 2 mi . distant from an observer . How long after it is fired does it take the sound to reach the observer if sound travels 1090 ft . per ...
Σελίδα 64
... earth ( 6080 feet ) , are sometimes used . 111. SURVEYORS ' MEASURES OF LENGTH 7.92 inches 1 link ( li . ) - 100 links = 1 chain ( ch ) = ( 4 rd . ) = 80 chains = 1 mile 112. MEASURES OF SURFACES 144 square inches ( sq . in . ) = 1 ...
... earth ( 6080 feet ) , are sometimes used . 111. SURVEYORS ' MEASURES OF LENGTH 7.92 inches 1 link ( li . ) - 100 links = 1 chain ( ch ) = ( 4 rd . ) = 80 chains = 1 mile 112. MEASURES OF SURFACES 144 square inches ( sq . in . ) = 1 ...
Σελίδα 76
... earth once each year and hence divided the circumference of the circle into 360 parts , each of which represented the apparent daily path of the sun . They probably knew the construction of the regular hexagon by applying 76 MEASURES.
... earth once each year and hence divided the circumference of the circle into 360 parts , each of which represented the apparent daily path of the sun . They probably knew the construction of the regular hexagon by applying 76 MEASURES.
Σελίδα 77
... earth revolves on its axis . The division of the day into 24 hours , of the hour into 60 minutes , and of the minute into 60 seconds is probably due to the Babylonians . The solar year is the time in which the earth travels once around ...
... earth revolves on its axis . The division of the day into 24 hours , of the hour into 60 minutes , and of the minute into 60 seconds is probably due to the Babylonians . The solar year is the time in which the earth travels once around ...
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acres altitude amount antilog arithmetical bank base bushels called carpet cent centimeters circle circumference common contained cube root cubic foot decagram decimal fraction decimal places decimeter denominator diameter difference digits discount divided dividend divisor earth equal EXERCISE factors figures Find the area Find the cost Find the number Find the volume grains greatest common divisor Greenwich Gregorian calendar Hence hour hypotenuse inch indorsement interest kilogram length logarithm longitude LYMAN'S ADV mantissa measure meridian meter metric system Multiply noon number of decimal paid parallelopiped payment pound premium prime meridian prism pyramid quotient radius ratio rectangular parallelopiped Reduce remainder right triangle sells sexagesimal side sold Solution specific gravity square root square yard subtract symbol trapezoid unit weight wide
Δημοφιλή αποσπάσματα
Σελίδα 64 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 133 - Specific Gravity. The specific gravity of a substance is the ratio of its weight to the weight of an equal volume of some other substance taken as a standard.
Σελίδα 64 - MEASURE 12 inches (in.) = 1 foot (ft). 3 feet = 1 yard (yd.). 5J yards or Щ feet = 1 rod (rd.) . 320 rods = 1 mile (mi.). SURFACE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.). 9 square feet = 1 square yard (sq.
Σελίδα 183 - Find the amount of the principal to the time when the payment, or the sum of the payments, equals or exceeds the interest due.
Σελίδα 48 - Multiplying or dividing both terms of a fraction by the same number does not change the value of the fraction.
Σελίδα 66 - Liquid Measure 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt...
Σελίδα 65 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Σελίδα 63 - Weight is used by apothecaries and physicians in compounding dry medicines. TABLE. 20 Grains (gr.} = 1 Scruple, . . sc., or 3. 3 Scruples = 1 Dram, . . dr., or 3 . 8 Drams = 1 Ounce, . . oz., or § . 12 Ounces = 1 Pound, . . Ib., or ft,.
Σελίδα 65 - TABLE. 10 Mills (m.) = 1 Cent . . ct. 10 Cents = 1 Dime . . d. 10 Dimes = 1 Dollar . $. 10 Dollars = 1 Eagle . E.