Junior High School Mathematics, Τόμος 1Scribner's [c1920], 1920 |
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Σελίδα 23
... Roots will be studied later . EXERCISES Give the values of the following : 1. 42 5. 44 9. 54 13. 252 17 . 123 2. 53 6 . 3. 34 7 . 4. 82 8 . 2 + 2 24 10 . 63 14 . 142 18 . 43 42 11 . 92 15. 232 19 . 26 23 12. 34 16 . 322 20 . 152 29 ...
... Roots will be studied later . EXERCISES Give the values of the following : 1. 42 5. 44 9. 54 13. 252 17 . 123 2. 53 6 . 3. 34 7 . 4. 82 8 . 2 + 2 24 10 . 63 14 . 142 18 . 43 42 11 . 92 15. 232 19 . 26 23 12. 34 16 . 322 20 . 152 29 ...
Σελίδα 24
... roots . 2. Multiply as indicated by " of . " 3. Multiply and divide in the order in which they arise . 4. Add and subtract in any order . The above expression would hence be : 12279 X 4 + 36 × 5 ÷ 2 of 88 X 9 ÷ of 20 = 12279 X 4 + 36 X ...
... roots . 2. Multiply as indicated by " of . " 3. Multiply and divide in the order in which they arise . 4. Add and subtract in any order . The above expression would hence be : 12279 X 4 + 36 × 5 ÷ 2 of 88 X 9 ÷ of 20 = 12279 X 4 + 36 X ...
Σελίδα 87
... root of the equation . The equation stating that five times a number equals 30 is 5 x n = 30. ( 1 ) Hereafter 5 × n , 7 × n , etc. , will be written 5n , 7n , etc. 5n , 7n , etc. , mean that there are 5 n's , 7 n's , etc. The above ...
... root of the equation . The equation stating that five times a number equals 30 is 5 x n = 30. ( 1 ) Hereafter 5 × n , 7 × n , etc. , will be written 5n , 7n , etc. 5n , 7n , etc. , mean that there are 5 n's , 7 n's , etc. The above ...
Σελίδα 89
... root in the very first equation . If the work is correct , this will produce a true equation ; if the work is incorrect , the resulting equation will not be true . Sub- stituting 3 for h in ( 4 ) gives , 7 X 383 X3 + 4 21 - 8 = 9 ( 8 ) ...
... root in the very first equation . If the work is correct , this will produce a true equation ; if the work is incorrect , the resulting equation will not be true . Sub- stituting 3 for h in ( 4 ) gives , 7 X 383 X3 + 4 21 - 8 = 9 ( 8 ) ...
Σελίδα 87
... root of the equation . The equation stating that five times a number equals 30 is 5 x n = 30. ( 1 ) Hereafter 5 × n , 7 × n , etc. , will be written 5n , 7n , etc. 5n , 7n , etc. , mean that there are 5 n's , 7 n's , etc. The above ...
... root of the equation . The equation stating that five times a number equals 30 is 5 x n = 30. ( 1 ) Hereafter 5 × n , 7 × n , etc. , will be written 5n , 7n , etc. 5n , 7n , etc. , mean that there are 5 n's , 7 n's , etc. The above ...
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