The Elements of Algebra: Designed for the Use of Common Schools, Also Serving as an Introduction to the "Treatise on Algebra"H.H. Hawley & Company, 1848 - 251 σελίδες |
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Σελίδα 9
... operations are performed by means of figures , letters , and signs or symbols . ( 2. ) In Algebra , quantities , whether given or requi- red , are usually represented by letters . The first let- ters of the alphabet are , for the most ...
... operations are performed by means of figures , letters , and signs or symbols . ( 2. ) In Algebra , quantities , whether given or requi- red , are usually represented by letters . The first let- ters of the alphabet are , for the most ...
Σελίδα 13
... OPERATION . 3 apples , 7 apples , 4 apples , 10 apples , 24 apples sum of all . If , instead of writing the word apples , we write only a , its initial letter , we shall have this second OPERATION . 3a 7a 4a 10a 24a = sum of all the a's ...
... OPERATION . 3 apples , 7 apples , 4 apples , 10 apples , 24 apples sum of all . If , instead of writing the word apples , we write only a , its initial letter , we shall have this second OPERATION . 3a 7a 4a 10a 24a = sum of all the a's ...
Σελίδα 14
... OPERATION . 3a = 3x5 = 15 Ta = 7X5 = 35 4a = 4X5 20 10a 10X5 50 24a 24X5 = 120 Again , suppose a = 2 , and we have this second 3a OPERATION . = 3X2 = 6 7a = 7X2 = 14 4α = 4X2 = 8 10a 10X2 = 20 24a = 24X2 = 48 As a second example ...
... OPERATION . 3a = 3x5 = 15 Ta = 7X5 = 35 4a = 4X5 20 10a 10X5 50 24a 24X5 = 120 Again , suppose a = 2 , and we have this second 3a OPERATION . = 3X2 = 6 7a = 7X2 = 14 4α = 4X2 = 8 10a 10X2 = 20 24a = 24X2 = 48 As a second example ...
Σελίδα 15
... OPERATION . 6m 10m 4m 20m sum of gains . The sum of his losses is found by the following OPERATION . -3m -8m -5m -16m sum of losses . Hence , 20m - 16m = 4m = his final number of mar- bles ; that is , he had 4 marbles after playing the ...
... OPERATION . 6m 10m 4m 20m sum of gains . The sum of his losses is found by the following OPERATION . -3m -8m -5m -16m sum of losses . Hence , 20m - 16m = 4m = his final number of mar- bles ; that is , he had 4 marbles after playing the ...
Σελίδα 18
... OPERATION . Tab -3ab 2ab 5ab -10ab ab If the beginner finds the above too difficult , he may arrange the positive and negative terms in two distinct columns as in this second OPERATION . Tab 3ab - 2ab 10ab 5ab - 14ab 13ab = ab . 3. What ...
... OPERATION . Tab -3ab 2ab 5ab -10ab ab If the beginner finds the above too difficult , he may arrange the positive and negative terms in two distinct columns as in this second OPERATION . Tab 3ab - 2ab 10ab 5ab - 14ab 13ab = ab . 3. What ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
added algebraic algebraic quantities antecedent arithmetical progression bx-ab change the signs Clear the equation cleared of fractions coefficient common denominator Consequently decimal denote digits Divide the number divisor equal equation of fractions EXAMPLES exponent expression Extracting the square favorable Find a number find the values find x formula four quantities fourth geometrical geometrical progression gives Hence inequality least common multiple left-hand term letters metical mixed quantity NEGATIVE PRODUCTS negative quantities nth root number of combinations number of permutations number of terms number sought numerator and denominator obtain OPERATION placed polynomial POSITIVE PRODUCTS pression proportion quadratic equation quotient rate per cent reciprocal Reduce remainder repetend Rule under Art second term simple chance simple equations solved square root subscript numbers substituted subtract things taken third tions Transposing and uniting twice uniting terms unknown quantity values of x VULGAR FRACTIONS
Δημοφιλή αποσπάσματα
Σελίδα 54 - Subtract the numerator of the subtrahend from the numerator of the minuend, and place the difference over the common denominator.
Σελίδα 77 - Two persons, A and B, lay out equal sums of money in trade ; A gains $126, and B loses $87, and A's money is now double of B's : what did each lay out ? Ans. $300.
Σελίδα 69 - What number is that whose third part exceeds its fourth part by 16 ? Let x= the number required, Then its — part will be —x, and its — part —a;.
Σελίδα 181 - One hundred stones being placed on the ground, in a straight line, at the distance of a yard from each other, how far will a person travel who shall bring them one by one to a basket, which is placed one yard from the first Stone ? Ans.
Σελίδα 99 - Then divide the first term of the remainder by the first term of the divisor...
Σελίδα 38 - ... the first term of the quotient ; multiply the• divisor by this term, and subtract the product from the dividend.
Σελίδα 44 - To reduce a mixed quantity to the form of a fraction. RULE. Multiply the entire part by the denominator of the fraction...
Σελίδα 134 - Since the square of a binomial is equal to the square of the first term, plus twice the product of the first term by the second, plus the square of the second...
Σελίδα 10 - It denotes that the quantities between which it is placed, are to be multiplied together.
Σελίδα 47 - To reduce an improper fraction to a whole or mixed number, — RULE : Divide the numerator by the denominator ; the quotient will be the whole or mixed number. EXAMPLES FOR PRACTICE.