Algebra for BeginnersMacmillan, 1895 - 188 σελίδες |
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Σελίδα 63
... minutes if he walks 1 mile in x minutes ? 15. How many miles can a man walk in 50 minutes if he walks x miles in y minutes ? 16. How long will it take a man to walk p miles if he walks 15 miles in q hours ? 17. How far can a pigeon fly ...
... minutes if he walks 1 mile in x minutes ? 15. How many miles can a man walk in 50 minutes if he walks x miles in y minutes ? 16. How long will it take a man to walk p miles if he walks 15 miles in q hours ? 17. How far can a pigeon fly ...
Σελίδα 156
... minutes ahead of the minute - hand ? 9. At what time between 1 and 2 o'clock are the hands of a watch in the same straight line ? 10. When are the hands of a clock at right angles between the hours of 5 and 6 ? 11. At what times between ...
... minutes ahead of the minute - hand ? 9. At what time between 1 and 2 o'clock are the hands of a watch in the same straight line ? 10. When are the hands of a clock at right angles between the hours of 5 and 6 ? 11. At what times between ...
Σελίδα 187
... 113. Solve the equations : - 75 - x 80x + 21 23 3 ( x + 1 ) 5 ( 3x + 2 ) x + 1 ( 1 ) + ( 2 ) √x + 12 - √√x = 6 . +5 ; 818 114. Ten minutes after the departure of an express train MISCELLANEOUS EXAMPLES V. 187 MISCELLANEOUS EXAMPLES III.
... 113. Solve the equations : - 75 - x 80x + 21 23 3 ( x + 1 ) 5 ( 3x + 2 ) x + 1 ( 1 ) + ( 2 ) √x + 12 - √√x = 6 . +5 ; 818 114. Ten minutes after the departure of an express train MISCELLANEOUS EXAMPLES V. 187 MISCELLANEOUS EXAMPLES III.
Σελίδα 188
Henry Sinclair Hall, Samuel Ratcliffe Knight. 114. Ten minutes after the departure of an express train a slow train is started , travelling on an average 20 miles less per hour , which reaches a station 250 miles distant 3 hours after ...
Henry Sinclair Hall, Samuel Ratcliffe Knight. 114. Ten minutes after the departure of an express train a slow train is started , travelling on an average 20 miles less per hour , which reaches a station 250 miles distant 3 hours after ...
Σελίδα
... minute details about the construction of this edition and its mechanical execution which we have no space to mention , but all showing the care , the patience , and the labor which have been bestowed upon it . On the whole , we think it ...
... minute details about the construction of this edition and its mechanical execution which we have no space to mention , but all showing the care , the patience , and the labor which have been bestowed upon it . On the whole , we think it ...
Συχνά εμφανιζόμενοι όροι και φράσεις
a²+b² acres algebraical sum Arithmetic arranged beginner cents CHAPTER coefficient Completing the square compound expressions convenient cube root descending powers difference digits dimes Divide division divisor Elementary Algebra equal examples see Elementary EXAMPLES XVII exceeds Find the highest Find the lowest find the number Find the product Find the square Find the sum find the value following expressions given expressions half-dollars Hence highest common factor lowest common denominator lowest common multiple lowest terms miles an hour miles per hour minute-hand Multiply negative numerator and denominator obtain quadratic equation quotient Reduce to lowest remainder removing brackets Resolve into factors result rule of signs side simple equation simultaneous equations Solve the equations square root Subtract Transposing trinomial unknown quantities walk whence write yards α α
Δημοφιλή αποσπάσματα
Σελίδα 91 - The product is a2+2a6-}-62; from which it appears, that the square of the sum of two quantities, is equal to the square of the first plus twice the product of the first by the second, plus the square of the second.
Σελίδα 107 - Conversely, the difference of the squares of any two quantities is equal to the product of the sum and the difference of the two quantities.
Σελίδα 89 - It is evident from the Rule of Signs that (1) no even power of any quantity can be negative; (2) any odd power of a quantity will have the same sign as the quantity itself. NOTE. It is especially worthy of notice that the square of every expression, whether positive or negative, is positive.
Σελίδα 54 - Transpose all the terms containing the unknown quantity to one side of the equation, and the "known quantities to the other.