Ray's Algebra, First Book: Primary Elements of Algebra, for Common Schools and Academies, Βιβλίο 1

Εξώφυλλο
Wilson, Hinkle and Company, 1866 - 240 σελίδες
 

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Δημοφιλή αποσπάσματα

Σελίδα 83 - Multiply the numerators together for a new numerator, and the denominators together for a new denominator.
Σελίδα 238 - If any number of quantities are proportional, any antecedent is to its consequent as the sum of all the antecedents is to the sum of all the consequents. Let a : b = c : d = e :f Now ab = ab (1) and by Theorem I.
Σελίδα 10 - X. is read into, or multiplied by. It denotes that the quantities between which it is placed, are to be multiplied together.
Σελίδα 43 - 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.
Σελίδα 233 - In any proportion the product of the means is equal to the product of the extremes.
Σελίδα 92 - To solve an equation, is to find the value of the unknown quantity ; or, to find a number, which being substituted for the unknown quantity, will render the two members identical.
Σελίδα 90 - Every equation is composed of two parts, separated from each other by the sign of equality. The First Member of an equation is the quantity on the left of the sign of equality. The Second Member is the quantity on the right of the sign of equality. Each member is composed of one or more terms. 147. There are generally two classes of quantities' in an equation, the known and the unknown.
Σελίδα 105 - A hare is 50 leaps before a greyhound, and takes 4 leaps to the greyhound's 3 ; but 2 of the greyhound's leaps are equal to 3 of the hare's ; how many leaps must the greyhound take, to catch the hare? Let x be the number of leaps taken by the hound.
Σελίδα 94 - Hence, Any quantity may be transposed from one side of an equation to the other, if, at the same time, its sign, be changed.
Σελίδα 111 - What two numbers are as 3 to 4, to each of which, if 4 be added, the sums will be as 5 to 6 ? Ans. 6 and 8.

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