Complete Secondary AlgebraFisher and Schwatt, 1901 - 288 páginas |
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Página 310
... when half full of water , will then be emptied in 15 hours . In what time will the empty tank be filled by the one pipe , and the full tank be emptied by the other ? F. Frencik CHAPTER XX . RATIO , PROPORTION , AND 310 [ CH . XIX ALGEBRA .
... when half full of water , will then be emptied in 15 hours . In what time will the empty tank be filled by the one pipe , and the full tank be emptied by the other ? F. Frencik CHAPTER XX . RATIO , PROPORTION , AND 310 [ CH . XIX ALGEBRA .
Página 311
... RATIO . 1. The Ratio of one number to another is the relation between the numbers which is expressed by the quotient of the first divided by the second . E.g. , the ratio of 6 to 4 is expressed by 4 , = § . The ratio of one number to ...
... RATIO . 1. The Ratio of one number to another is the relation between the numbers which is expressed by the quotient of the first divided by the second . E.g. , the ratio of 6 to 4 is expressed by 4 , = § . The ratio of one number to ...
Página 312
... ratio P : Q lies . fractions differ by 1. Therefore , the ratio P : Q , n These two which lies 1 between them , differs from either of them by less than By 1 n taking n sufficiently great we can make as small as we n please , that is ...
... ratio P : Q lies . fractions differ by 1. Therefore , the ratio P : Q , n These two which lies 1 between them , differs from either of them by less than By 1 n taking n sufficiently great we can make as small as we n please , that is ...
Página 313
... ratios . E.g. , 4 : 3 = 8 : 6 , read the ratio of 4 to 3 is equal to the ratio of 8 to 6 , or 4 is to 3 as 8 is to 6 . Instead of the equality sign a double colon is frequently used ; as 4 : 3 :: 8 : 6 . 7. Four numbers are said to be ...
... ratios . E.g. , 4 : 3 = 8 : 6 , read the ratio of 4 to 3 is equal to the ratio of 8 to 6 , or 4 is to 3 as 8 is to 6 . Instead of the equality sign a double colon is frequently used ; as 4 : 3 :: 8 : 6 . 7. Four numbers are said to be ...
Página 314
... ratios in ( 1 ) , ( 2 ) , ( 3 ) , ( 4 ) , c : d = a : b ; Notice that the two numbers of either product may be taken as the extremes , the other two as the means . a and d are the extremes , c and b the means ; d and a are the means , c ...
... ratios in ( 1 ) , ( 2 ) , ( 3 ) , ( 4 ) , c : d = a : b ; Notice that the two numbers of either product may be taken as the extremes , the other two as the means . a and d are the extremes , c and b the means ; d and a are the means , c ...
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Términos y frases comunes
a₁ arithmetical means arithmetical progression assume b₁ b₂ coefficient column common logarithms continued fraction convergent series corresponding d₁ d₂ decimal places denominator depressed equation determinant digits divergent series Dividing elements equal equation whose roots EXERCISES expansion factor figure Find the value finite number Form the equation geometrical means geometrical progression given equation given series graph harmonical mean Hence increases indefinitely infinite series last term less limit logarithms mantissa method multiplying nth term number of combinations obtained partial fractions partial quotient permutations preceding article principle quadratic equation r₁ r₂ ratio real roots reciprocal equation result root of f(x S₁ second member series is convergent solution Solve the equation Sturm's Theorem Substituting subtracted transformed equation u₁ U₂ unknown number variable variations of sign whence wherein x-axis
Pasajes populares
Página 415 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 354 - C„.r. That is, the number of combinations of n dissimilar things r at a time is equal to the number of combinations of the n things n — r at a time.
Página 351 - We will now derive a formula for the number of permutations of n things, taken all at a time, when some of them are alike.
Página 313 - IF the first be the same multiple of the second, or the same part of it, that the third is of the fourth ; the first is to the second, as the third is to the fourth...
Página 317 - In a series of equal ratios, any antecedent is to its consequent, as the sum of all the antecedents is to the sum of all the consequents. Let a: 6 = c: d = e :/. Then, by Art.
Página 310 - Two workmen can do a piece of work in 6 days. How long will it take each of them to do the work, if it takes one 5 days longer than the other ? 19.
Página 360 - V(a2 — °^)> etc-, are functions of x ; corresponding to any value of x, the first function has one value, the second has two values. Again, the area of a circle is a function of its radius ; the distance a train runs is a function of the time and speed. 4. Much simplicity is introduced into mathematical investigations by employing special symbols for functions. The symbol f(x), read function of x, is very commonly used to denote a function of x.
Página 315 - In any proportion the terms are in proportion by. Composition ; that is, the sum of the first two terms is to the first term, as the sum of the last two terms is to the third ter.n.
Página 323 - If a body falls 256 feet in 4 seconds, how far will it fall in 10 seconds?
Página 373 - An infinite series is said to be divergent when the sum of the first n terms can be made numerically greater than any finite quantity by taking n sufficiently great.