An Elementary Treatise on Algebra: Theoretical and PracticalCollins and Hannay, 1824 - 516 σελίδες |
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Σελίδα 269
... dollars become at the end of the year 105 dollars , we shall have the capital at the same time by this proportion , 100 105 : x : 105x 100 the capital . 105x The sum + b , by the problem , must be equal 100 to x , we have therefore the ...
... dollars become at the end of the year 105 dollars , we shall have the capital at the same time by this proportion , 100 105 : x : 105x 100 the capital . 105x The sum + b , by the problem , must be equal 100 to x , we have therefore the ...
Σελίδα 272
... dollars ; B , 420 dollars ; and C , ' 140 dollars . Prob . 11. There are two numbers whose difference is 15 , and their sum 59. What are the numbers ? As their difference is 15 , it is evident that the greater number must exceed the ...
... dollars ; B , 420 dollars ; and C , ' 140 dollars . Prob . 11. There are two numbers whose difference is 15 , and their sum 59. What are the numbers ? As their difference is 15 , it is evident that the greater number must exceed the ...
Σελίδα 274
... dollars left . What money had I at first ? Let the money in my purse at first ; then + x then money paid away . 4 7 But money at first remaining . money paid away money x .. by the problem , x— ( +9 ) = 850 , or x XC 4 7 850 ...
... dollars left . What money had I at first ? Let the money in my purse at first ; then + x then money paid away . 4 7 But money at first remaining . money paid away money x .. by the problem , x— ( +9 ) = 850 , or x XC 4 7 850 ...
Σελίδα 277
... dollars ; of which B paid three times as much as A ; C paid as much as A and B ; and D paid as much as C and B. What did each pay ? Here , if we knew how much A paid , the sum paid by each of the rest could be easily ascertained . Let ...
... dollars ; of which B paid three times as much as A ; C paid as much as A and B ; and D paid as much as C and B. What did each pay ? Here , if we knew how much A paid , the sum paid by each of the rest could be easily ascertained . Let ...
Σελίδα 278
... dollars respec- tively . Prob . 23. A Fish was caught , whose tail weighed 9lbs .; his head weighed as much as his tail , and half his body ; and his body weighed as much as his head and tail . What did the fish weigh ? - Let 2x the ...
... dollars respec- tively . Prob . 23. A Fish was caught , whose tail weighed 9lbs .; his head weighed as much as his tail , and half his body ; and his body weighed as much as his head and tail . What did the fish weigh ? - Let 2x the ...
Άλλες εκδόσεις - Προβολή όλων
An Elementary Treatise on Algebra: Theoretical and Practical James Ryan,Robert Adrain Πλήρης προβολή - 1824 |
An Elementary Treatise on Algebra: Theoretical and Practical James Ryan,Robert Adrain Πλήρης προβολή - 1824 |
Συχνά εμφανιζόμενοι όροι και φράσεις
according added algebraic quantities arithmetical becomes binomial changing the signs coefficient common denominator completing the square compound quantity consequently cube root DEMONSTRATION difference digits divi divided dividend division equa equal exponent expressed extracting the root factors find the values formula fourth given equation greater greatest common divisor Hence integral least common multiple less letter logarithm lowest terms lues magnitudes manner method miles multiplied negative number of terms observed positive Prob problem proportionals proposed equation quadratic equations quadratic surds quan quotient radical quantities radical sign ratio Reduce remainder Required the cube Required the square required to find result RULE second equation shillings side simple equations square root substituting subtracted surd third tion tity transposition unity unknown quantity values of x whence whole number
Δημοφιλή αποσπάσματα
Σελίδα 489 - The first of four magnitudes is said to have the same ratio to the second which the third has to the fourth, when any...
Σελίδα 239 - Find the value of one of the unknown quantities, in terms of the other and known quantities...
Σελίδα 318 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Σελίδα 323 - ... and the quotient will be the next term Of the root. Involve the whole of the root, thus found, to its proper power...
Σελίδα 498 - IF any number of magnitudes be proportionals, as one of the antecedents is to its consequent, so shall all the antecedents taken together be to all the consequents.
Σελίδα 452 - There are four numbers in arithmetical progression : the sum of the squares of the two first is 34 ; and the sum of the squares of the two last is 130. What are the numbers?
Σελίδα 493 - Likewise, if the first has the same ratio to the second, which the third has to the fourth, then also any equimultiples whatever of the first and third shall have the same ratio to the second and fourth...
Σελίδα 501 - IF magnitudes, taken separately, be proportionals, they shall also be proportionals when taken jointly, that is, if the first be to the second, as the third to the fourth, the first and second together shall be to the second, as the third and fourth together to the fourth...
Σελίδα 285 - A cask, which held 146 gallons, was filled with a mixture of brandy, wine, and water. In it there were 15 gallons of wine more than there were of brandy, and as much water as both wine and brandy. What quantity was there of each...
Σελίδα 490 - When of the equimultiples of four magnitudes (taken as in the fifth definition), the multiple of the first is greater than that of the second, but the multiple of the third is not greater than the multiple of the fourth; then the first is said to have to the second a greater ratio than the third...