Practical Arithmetic for Schools ...Rivingtons, 1921 |
Términos y frases comunes
20 per cent acres annum Answer correct approx buys Calculate centimes centimetre of water centimetres compound interest cost price cube cubic centimetre cubic foot cursor cylinder decimal places diameter digits discount distance dividend equal EXERCISE feet Find the cost Find the number Find the value Find the weight fraction francs gain gallons given grams income tax increase invested kilograms kilometres left-hand index length limits of error liquid litres logarithms metal metres miles an hour miles per hour minutes mixed months move the slide nearest integer nearest penny o'clock obtained PAPER percentage places of decimals pound profit proportion quotient radius railway rate per cent rectangular recurring decimal sells the mixture significant figures simple interest sold specific gravity sum of money thick tons train travels vernier volume vulgar fraction water weighs yards دو وو
Pasajes populares
Página 293 - Suppose that a*=n, then x is called the logarithm of n to the base a : thus the logarithm of a number to a given base is the index of the power to which the base must be raised to be equal to the number. The logarithm of n to the base a is written log.
Página 295 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 368 - Diophantus passed one-sixth of his life in childhood, one twelfth in youth and oneseventh more as a bachelor; five years after his marriage was born a son who died four years before his father, at half his father's ultimate age.
Página 308 - ... is the ratio of the specific heat at constant pressure to the specific heat at constant volume, is a constant.
Página 336 - A train 88 yards long overtook a person walking along the line at the rate of 4 miles an hour, and passed him completely in ю seconds.
Página 295 - The logarithm of the quotient of two numbers is equal to the logarithm of the dividend minus the logarithm of the divisor.
Página 412 - ... 3. The circumferences of the fore and hind wheels of a carriage are 13 ft. 9 in. and 16 ft. 6 in. respectively. How far has the carriage travelled when the fore wheel has made 768 more revolutions than the hind wheel?
Página 327 - A person invests £1365 in the 3 per cents. at 91 ; he sells out £1000 stock when they have risen to 93|-, and the remainder when they have fallen to 85. Find his gain or loss.
Página 436 - A lends B a certain sum ; at the same time he insures B's life for £737, 12s. 6d., paying annual premiums of £20. At the end of three years, and just before the fourth premium is to be paid, B dies, having never repaid anything. What must A have lent B, in order that he may just have enough to recoup himself, together with 5 per cent, compound interest on the sum lent, and on the premiums ? 111. Find, by means of duodecimals, the exact cost of glazing twelve windows, each containing 60 panes 1...
Página 295 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers.