 | Charles Austin Hobbs - Arithmetic - 1889 - 370 pages
...determined by the revolution of the earth on its axis and around the sun. TABLE. 60 seconds (sec.) = l minute (min.). 60 minutes = 1 hour (hr.). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 365 days = 1 year (yr.). 366 days = 1 leap year. 100 years = 1 century. The... | |
 | Warren H. Sadler, William Russell Will - Business mathematics - 1890 - 316 pages
...= 1 ream (rm.) ; 2 reams = 1 bundle (bdl.) ; 5 bundles = 1 bale (bl.). MEASURE OF TIME. 172. Scale: 60 seconds (sec.) = 1 minute (min.) ; 60 minutes =...hour (hr.) ; 24 hours = 1 day (da.) ; 365 days = 1 common year (yr.) ; 366 days = 1 leap year (yr.). Also, 7 days = 1 week (wk.) ; 12 months (mo.) = 1... | |
 | John Edward King - Business mathematics - 1891 - 254 pages
...centennial years, are leap years, and when centennial years are divisible by 400 they are leap years. TABLE. 60 seconds (sec.) = 1 minute (min.). 60 minutes =...hour ( hr.). 24 hours = 1 day ( da.). 365 days = 1 common year (yr.). 100 years = 1 century ( C.). COMMERCIAL. TABLE. 30 days = 1 month. | 12 months =... | |
 | Charles Edward White - Arithmetic - 1891 - 224 pages
...lb. of tea at $.56 a pound will buy how many pounds of sugar at $.07 a lb. ? SLesson 19. TIME TABLE. 60 seconds (sec.) 1 minute (min.). 60 minutes 1 hour (hr.). 24 hours 1 day (da.). 7 days 1 week (wk.). 4 weeks 1 month (mo.). 12 months 1 year (yr.). 52 weeks 1 year. 365 days 1 year.... | |
 | William James Milne - Arithmetic - 1892 - 440 pages
...46 BC, who made the year consist of 365.J days, adding one day every fourth year. In 1582, the error 60 Seconds (sec.) = 1 Minute . . . min. 60 Minutes = 1 Hour . . . . hr. 24 Hours = 1 Day . . . . da. 7 Days = 1 Week . . . wk. 365 Days = 1 Year . . . . yr. 3(i6 Days = 1 Leap Year . . y. 100 Years =... | |
 | George Albert Wentworth - Algebra - 1892 - 312 pages
...scruple (3). 8 drams — 1 ounce ( 5 ). 3 scruples — 1 dram (3)- 12 ounces — 1 pound. VI. TIME. 60 seconds (sec.) = 1 minute (min.). 60 minutes — 1 hour (hr.). 24 hours — 1 day (dy.). 7 days — 1 week (wk.). 365 days — 1 common year (yr.). 366 days — 1 leap-year. The day... | |
 | Eugene L. Dubbs - Arithmetic - 1893 - 238 pages
...?/^y</ ^ j[rLtf- /',/, . ' .,."-£ LESSON VIII. Time Measure. 60 seconds (sec.) - make 1 minute, marked min. 60 minutes - - - " 1 hour, " hr. 24 hours - -...- " 1 year, " yr. 366 days - - - - " 1 leap year, " yr. 7 days ------ 1 week, " wk. 52 weeks - - - - " 1 year, " yr. 12 calendar months - " 1 year, "... | |
 | 1893 - 252 pages
...years, are leap years, and when centennial years are .divisible by 400 they are leap years. TABLE. 60 seconds (sec.) = 1 minute (min.). 60 minutes =...hour ( hr.). 24 hours = 1 day ( da.). 365 days = 1 common year (yr.). 100 years =: 1 century (C.). COMMERCIAL TABLE. 30 days = 1 month. | 12 months =... | |
 | William James Milne - Arithmetic - 1893 - 252 pages
...In90gr.? 9. How many dr. are there in 2 oz. 3 dr. ? In 3 oz. 5 dr. ? DIVISIONS OF TIME. 253. TABLE. 60 seconds (sec.) = 1 minute (min.). 60 minutes = 1 hour (hr.). 24 hours = 1 day (da.). 7 days = 1 week (wk.). 365 days = 1 year (yr.). 366 days = 1 leap year (1. yr.). 100 years = 1 century... | |
 | George Albert Wentworth - Arithmetic - 1893 - 242 pages
...16 ounces = 1 pint (fl. oz. xvj.). TIME MEASURE. Time Measure is used in measuring duration. TABLE. 60 seconds (sec.) = 1 minute (min.). 60 minutes = 1 hour (hr.). 24 hours = 1 day (dy.). 7 days = 1 week (wk.). 365 days (or 52 wks. 1 dy.) = 1 common year (yr.). 366 days = 1 leap-year.... | |
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Time. 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24... 
