First Lessons in Algebra: Being an Easy Introduction to that Science ; Designated for the Use of Academies and Common Schools |
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Page 23
... debts to the amount of 500 dollars . much is he worth ? How Here , the money the man has is a positive quanti- ty , and the amount of his debts , which is to be sub- tracted , is a negative quantity ; therefore , the expres- sion 200 ...
... debts to the amount of 500 dollars . much is he worth ? How Here , the money the man has is a positive quanti- ty , and the amount of his debts , which is to be sub- tracted , is a negative quantity ; therefore , the expres- sion 200 ...
Page 26
... debts , that these sums should be written - 100 , -300 , and - 500 ; and that they may be added together , as if they were positive quantities , their amount being written - 900 , ✓ to show that it is to be subtracted from some other ...
... debts , that these sums should be written - 100 , -300 , and - 500 ; and that they may be added together , as if they were positive quantities , their amount being written - 900 , ✓ to show that it is to be subtracted from some other ...
Page 27
... debt ; that is , - 2 x will cancel + 2x , leaving + x due . - ANS . -x . 22. Add together 2 x , and 3 х . This example is like the last , only the negative is the larger quantity , and the answer must have the sign prefixed . For it is ...
... debt ; that is , - 2 x will cancel + 2x , leaving + x due . - ANS . -x . 22. Add together 2 x , and 3 х . This example is like the last , only the negative is the larger quantity , and the answer must have the sign prefixed . For it is ...
Page 39
... debt of 3 x dollars , and another debt of y dollars . How many has he left ? ANS . x - y dollars . It is here required to take the whole value of the compound quantity , 3 x + y , the sums paid away , from 4 x . Now , if only 3 x be ...
... debt of 3 x dollars , and another debt of y dollars . How many has he left ? ANS . x - y dollars . It is here required to take the whole value of the compound quantity , 3 x + y , the sums paid away , from 4 x . Now , if only 3 x be ...
Page 42
... debt 1000 dollars , we should subtract that sum in forming an estimate of his property ; but if B cancels that debt for him , that is , subtracts that quantity , he evidently increases or adds to the amount of his prop- erty as much as ...
... debt 1000 dollars , we should subtract that sum in forming an estimate of his property ; but if B cancels that debt for him , that is , subtracts that quantity , he evidently increases or adds to the amount of his prop- erty as much as ...
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Common terms and phrases
A's share acres added Algebra amount answer apples asked the age binomial bought bushels cents chaise coefficient common denominator completing the square compound quantities contain cost cube root debt difference Divide dividend divisor dollars equal exponent expressed Extract the square farmer fourth power fourth root frac gain gallons gentleman give given quantity greater horse improper fraction less letter merator miles an hour mixed multiply equation negative quantity obtain oranges peaches pears pounds quan question quotient receive Reduce remainder Required the number rods second power second term SECTION shillings Simple Quantities sold square root subtracted third power tion tity transposition twice unknown quantity worth x y z x²y yards α² α³ ху
Popular passages
Page 246 - Several gentlemen made an excursion, each taking the same sum of money. Each had as many servants attending him as there were gentlemen ; the number of dollars which each had was double the number of all the servants, and the whole sum of money taken out was 3456 dollars.
Page 122 - A man driving his geese to market, was met by another, who said, good morrow, master, with your hundred geese ; says he, I have not a hundred ; but if I had half as many more as I now have, and two geese and a half, I should have a hundred ; how many had he ? /C s"~
Page 141 - A man and his wife usually drank out a cask of beer in 12 days ; but when the man was from home, it lasted the woman 30 days : how many days would the man alone be in drinking it ? Ans.
Page 251 - The fore-wheel of a carriage makes 6 revolutions more than the hind- wheel in going 120 yards; but if the circumference of each wheel be increased one yard, it will make only 4 revolutions more than the hind-wheel in the same distance.
Page 68 - Divide the first term of the dividend by the first term of the divisor, giving the first term of the quotient. Multiply the whole divisor by this term, and subtract the product from the dividend, arranging the remainder in the same order of powers as the dividend and divisor.
Page 237 - A square court yard has a rectangular gravel walk round it. The side of the court wants 2 yards of being 6 times the breadth of the gravel walk ; and the number of square yards in the walk exceeds the number of yards in the periphery of the court by 164. Required the area of the court ? All equations of the second degree may be reduced to one of the following forms.
Page 138 - A gentleman invested -J of his property in a canal. When he sold out, he lost f of the sum invested, receiving only $1,446. What was the value of his property when he began ? Ans., $11,568. 29. A gentleman leaves $315 to be divided among four servants in the following manner : B is to receive as much as A, and |- as much more; C is to receive as much as A and B, and ^ as much more ; D is to receive as much as the other three, and £ as much more. What is the share of each ? price of the chaise, the...
Page 131 - There is a fish whose head weighs 9 lb. his tail weighs as much as his head and half his body, and his body weighs as much as his head and tail both.
Page 166 - If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans.
Page 125 - The distance from A to D is 34 miles. The distance from A to B is to the distance .from C to D as 2 to 3. And ± of the distance from A to B, added to half the distance from C to D, is three times the distance from B to C. What are the respective distances ? Ans.