 | George Albert Wentworth - Arithmetic - 1888 - 392 pages
...to grains. 7. 745 Ibs. avoirdupois to troy weight. 8. 745 Ibs. troy to avoirdupois weight. 301. TlME 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.). NOTE. The interval... | |
 | George Albert Wentworth - 1888 - 388 pages
...grains. 7. 745 lbs. avoirdupois to troy weight. 8. 745 lbs. troy to avoirdupois weight. 301. TlME60 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.... | |
 | Charles Scott Venable - Arithmetic - 1888 - 242 pages
...eagles equal how many cents ? 5 eagles ? 372. Reduce the following : 373. 60 seconds (sec.) make ... 1 minute, . . min. 60 minutes " ... 1 hour, . . . hr. 24 hours " ... 1 day, ... da. 7 days " ... 1 week, . . wk. 865 days " ... 1 year, . . yr. Every fourth year is called a leap year,... | |
 | Charles Austin Hobbs - Arithmetic - 1889 - 362 pages
...measures of time are determined by the revolution of the earth on its axis and around the sun. 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. 100 years = 1 century. The length... | |
 | James William Nicholson - Arithmetic - 1889 - 408 pages
...( ) oz. MEASURES OF TIME. 254. Time is a limited portion of duration. TABLE. CO seconds (sec.) make 1 minute (min.) 60 minutes " 1 hour (hr.) 24 hours " 1 DAY (da.) 7 days " 1 week (wk.) 4 weeks " 1 month (mo.) 305 days " 1 common year (yr. ) 36C days " 1 leap year.... | |
 | 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... | |
 | 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 =...hours = 1 day ( da.). 365 days = 1 common year (yr.). 100 years = 1 century ( C.). COMMERCIAL. TABLE. 30 days = 1 month. | 12 months = 1 year. TABLE OF CALENDAR... | |
 | 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... | |
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TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24... 
