Arithmetic for the Practical ManD. Van Nostrand, 1931 - 269 σελίδες |
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Σελίδα 160
... longitude , and 1 second of time to 15 ' ÷ 60 = 15 " of longitude . Similarly , since 360 ° of longitude is equivalent to 24 hours Sept. 21 Sept. 20 1 A.M. Midnight + 11 P.M. -90 ° -75 ° 2 A.M. -105 -1200 3 A.M. -135 A.M. -150 5 A.M ...
... longitude , and 1 second of time to 15 ' ÷ 60 = 15 " of longitude . Similarly , since 360 ° of longitude is equivalent to 24 hours Sept. 21 Sept. 20 1 A.M. Midnight + 11 P.M. -90 ° -75 ° 2 A.M. -105 -1200 3 A.M. -135 A.M. -150 5 A.M ...
Σελίδα 161
... longitude is expressed as difference of time by RULE I. - Divide the difference in longitude , as expressed ' in degrees , minutes and seconds by 15 , by the rule for division of com- pound numbers ; the quotient is the corresponding ...
... longitude is expressed as difference of time by RULE I. - Divide the difference in longitude , as expressed ' in degrees , minutes and seconds by 15 , by the rule for division of com- pound numbers ; the quotient is the corresponding ...
Σελίδα 167
... Longitude 89 ° W. and Suez 31 ° E. How far apart are they in miles ? ( 5 ) When it is 9 o'clock at Washington ( true time ) it St. Louis , and the longitude of Washington is 77 ° 1 ' W. longitude of St. Louis ? is 8:07:04 at What is the ...
... Longitude 89 ° W. and Suez 31 ° E. How far apart are they in miles ? ( 5 ) When it is 9 o'clock at Washington ( true time ) it St. Louis , and the longitude of Washington is 77 ° 1 ' W. longitude of St. Louis ? is 8:07:04 at What is the ...
Περιεχόμενα
CHAPTER I | 3 |
SUBTRACTION | 10 |
CHAPTER III | 18 |
Πνευματικά δικαιώματα | |
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added amount angle anti-log arithmetical progression bushels calculation called chapter ciphers circle circumference column common difference common fraction common logarithms complete quotient compound number cone cube root cubic curve cylinder decimal fraction decimal number decimal places decimal point degrees denominate number diameter distance divided dollars equal equator equivalent example exponent expressed factors geometrical progression given number graph hypotenuse illustrated inches indicated last figure last term lateral surface latitude length logarithms longitude mantissa means measure method metric system miles minuend multiply number of terms partial dividend periodic rate plane figures poles prime meridian proportion pyramid quotient radius ratio rectangle rectangular solid remainder represent result right triangle side Similarly simple slant height sphere square and cube square root subtracted subtrahend surface area symbols temperature tion unit volume weight whole number write written