The Academic AlgebraThompson, Brown, 1889 - 414 páginas |
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Página 156
... solving a problem is in translating the statements or conditions of the problem from common to algebraic language ; that is , in preparing the data and forming an equation in accord- ance with the given conditions . It is impossible to ...
... solving a problem is in translating the statements or conditions of the problem from common to algebraic language ; that is , in preparing the data and forming an equation in accord- ance with the given conditions . It is impossible to ...
Página 178
... Solve 180. Elimination by Substitution . ( 3x + 7y = 27 . 5x + 2y = 16 . ( 1 ) ( 2 ) - 3 x ( 3 ) 5 +2 7 ( 27 = 3 x ) = 16 ( 4 ) 6 ( 7 ) x = 2 ( 6 ) y = 27 - y = - 27 7 35 x + 54 — 6 x = 112 ( 5 ) Transposing 3x in ( 1 ) and dividing by ...
... Solve 180. Elimination by Substitution . ( 3x + 7y = 27 . 5x + 2y = 16 . ( 1 ) ( 2 ) - 3 x ( 3 ) 5 +2 7 ( 27 = 3 x ) = 16 ( 4 ) 6 ( 7 ) x = 2 ( 6 ) y = 27 - y = - 27 7 35 x + 54 — 6 x = 112 ( 5 ) Transposing 3x in ( 1 ) and dividing by ...
Página 179
... Solve S3x + 7y = 27 . 27 x = 5x + 2y = 16 . - 3 7 y 27 ( 1 ) ( 2 ) 16 2 y ( 3 ) x = ( 4 ) 5 - 7 y 16-2 y ( 5 ) 3 5 135 35 y = 486 y ( 6 ) y = 3 ( 7 ) 166 x = - ( 8 ) 5 2 Finding an expression for the value of x from both ( 1 ) and ( 2 ) ...
... Solve S3x + 7y = 27 . 27 x = 5x + 2y = 16 . - 3 7 y 27 ( 1 ) ( 2 ) 16 2 y ( 3 ) x = ( 4 ) 5 - 7 y 16-2 y ( 5 ) 3 5 135 35 y = 486 y ( 6 ) y = 3 ( 7 ) 166 x = - ( 8 ) 5 2 Finding an expression for the value of x from both ( 1 ) and ( 2 ) ...
Página 180
... Solve 5x + 2y = 16 . ( 1 ) ( 2 ) 15x + 35 y = 135 ( 3 ) 15x + 6y = 48 ( 4 ) 29 y = 87 ( 5 ) 5 + 6 = 16 ( 7 ) y = 3 ( 6 ) x = 2 ( 8 ) If we multiply ( 1 ) by 5 and ( 2 ) by 3 , we have ( 3 ) and ( 4 ) , in which the coefficients of x are ...
... Solve 5x + 2y = 16 . ( 1 ) ( 2 ) 15x + 35 y = 135 ( 3 ) 15x + 6y = 48 ( 4 ) 29 y = 87 ( 5 ) 5 + 6 = 16 ( 7 ) y = 3 ( 6 ) x = 2 ( 8 ) If we multiply ( 1 ) by 5 and ( 2 ) by 3 , we have ( 3 ) and ( 4 ) , in which the coefficients of x are ...
Página 181
William Frothingham Bradbury, Grenville C. Emery. 183. Solve the following equations : NOTE . Which of the three methods of elimination should be used de- pends upon the relations of the coefficients to each other . That one which will ...
William Frothingham Bradbury, Grenville C. Emery. 183. Solve the following equations : NOTE . Which of the three methods of elimination should be used de- pends upon the relations of the coefficients to each other . That one which will ...
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Términos y frases comunes
9 a² a b c a² b² a² b³ a²b² a²x² algebraic expressions arithmetical progression b² c² binomial Binomial Theorem bracket cents coefficient cube root denominator digits divided dividend equal examples exponent figures Find the factors Find the greatest Find the number Find the square Find the sum Find the value following Rule geometrical progression given greatest common divisor Hence integral last term least common multiple less logarithm miles an hour mixed number monomial Multiply negative number number of hours number of terms polynomial positive number quadratic equation quotient radical ratio remainder second term simplest form Simplify square root subtracted Theorem Transposing trial divisor unknown number x y z x² y² x²y x³ y² yards
Pasajes populares
Página 53 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Página 317 - Four quantities are in proportion when the ratio of the first to the second is equal to the ratio of the third to the fourth.
Página 317 - In a proportion the antecedents and consequents of the two ratios are respectively the antecedents and consequents of the proportion. The first and fourth terms are called the extremes, and the second and third the means.
Página 152 - The first term of a ratio is called the antecedent, and the other the consequent ; and the two terms together are called a couplet.
Página 228 - Multiply the true divisor by this neiv root figure, subtract the product from the dividend, and to the remainder annex the next period, for a new dividend.
Página 330 - Any three of the five following things being given, the other two may be found : 1. The first term. 2. The last term. 3. The number of terms. 4. The common difference. 5. The sum of all the terms.
Página 61 - The square of the sum of two numbers is equal to the square of the first, plus twice the product of the first by the second, plus the square of the second.
Página 152 - Three quantities are said to be proportional when the ratio of the first to the second is equal to the ratio of the second to the third.
Página 227 - Subtract the square of this figure from the left-hand period, and to the remainder annex the next period for a dividend.
Página 250 - Resolve the quantity under the radical sign into two factors, one of which is the greatest perfect power of the same degree as the radical.