A Key to the American Tutor's Assistant Revised: In which All the Examples Necessary for a Learner are Wrought at Large; and Also Solutions Given of All the Questions for Exercise in the Various Rules. Designed Principally to Facilitate the Labour of Teachers, and Assist Such as Have Not the Opportunity of a Tutor's AidJoseph Crukshank, 1809 - 183 من الصفحات |
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الصفحة 62
... . 6in . Or , as 36 in . 540ft . 30in . : 648ft . For 540X3619440 which + 30 648ft 972yds . answer . ( 6 ) Thus 5qrs : 30yds . : 3qrs . 5 150 + 3 = 50yds . answer , ( 7 ) Thus : As 12m .: 100l . 62 The Single Rule of Three .
... . 6in . Or , as 36 in . 540ft . 30in . : 648ft . For 540X3619440 which + 30 648ft 972yds . answer . ( 6 ) Thus 5qrs : 30yds . : 3qrs . 5 150 + 3 = 50yds . answer , ( 7 ) Thus : As 12m .: 100l . 62 The Single Rule of Three .
الصفحة 63
... 5qrs . 4 320564yds . answer . ( 9 ) Thus : As 24day 5 men : 15 day 8 m . 5 120 + 15 = 8 men . answer . ( 10 ) Thus : As 5 men : 24 days : 8 men : 15 days 5 1208-15 days . answer . ( 11 ) Thus : As 4 ) 16hr .: 3days : 4 ) 12hr . 4 days ...
... 5qrs . 4 320564yds . answer . ( 9 ) Thus : As 24day 5 men : 15 day 8 m . 5 120 + 15 = 8 men . answer . ( 10 ) Thus : As 5 men : 24 days : 8 men : 15 days 5 1208-15 days . answer . ( 11 ) Thus : As 4 ) 16hr .: 3days : 4 ) 12hr . 4 days ...
الصفحة 65
... 5qrs . : 10 . For 1650 X5 = 8250 which ÷ 800-10 . or , 10s 3d . answer . ( 11 ) Thus inversely : As 512m .: 225C . :: 64m . : 1800C . For 512 X 225 115200 which ÷ 64-1800C.wt . answer . ( 12 ) First 6s 6d . ÷ 2 = 3s 3d . price per yd ...
... 5qrs . : 10 . For 1650 X5 = 8250 which ÷ 800-10 . or , 10s 3d . answer . ( 11 ) Thus inversely : As 512m .: 225C . :: 64m . : 1800C . For 512 X 225 115200 which ÷ 64-1800C.wt . answer . ( 12 ) First 6s 6d . ÷ 2 = 3s 3d . price per yd ...
الصفحة 128
... . 7454720 13 ( 6 ) Ft . in . b . c . com . mea.573440 ) - 2 8 1. a yard = 3ft . ཁྲ [ སྐ ཤ 97 12 36 Then common measure 54 / 48 = yd . Facit . 3 108 6 5 486 ཨ 540 ( 7 ) A yard An ell Eng . 5qrs 128 Reduction of Vulgar Fractions .
... . 7454720 13 ( 6 ) Ft . in . b . c . com . mea.573440 ) - 2 8 1. a yard = 3ft . ཁྲ [ སྐ ཤ 97 12 36 Then common measure 54 / 48 = yd . Facit . 3 108 6 5 486 ཨ 540 ( 7 ) A yard An ell Eng . 5qrs 128 Reduction of Vulgar Fractions .
الصفحة 129
... 5qrs . 44 49rs . Facit ell . ( 8 ) 3qrs X4 + 2 na . = 14 = } = yds . Facit . ( 9 ) IR.X40 + 30P . = 70 acres Facit . 140day . 4qrs . X 4 4R.X40 ( 10 ) 13hr.x60 + 30min . 10 24 X60 CASE . 10 . EXAMPLES . ( 2 ) Thus ; As 7 : 0 :: 42 : 48 ...
... 5qrs . 44 49rs . Facit ell . ( 8 ) 3qrs X4 + 2 na . = 14 = } = yds . Facit . ( 9 ) IR.X40 + 30P . = 70 acres Facit . 140day . 4qrs . X 4 4R.X40 ( 10 ) 13hr.x60 + 30min . 10 24 X60 CASE . 10 . EXAMPLES . ( 2 ) Thus ; As 7 : 0 :: 42 : 48 ...
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12 answer 12 days 12 Facit 2qrs 3qrs 4qrs 54 Facit 5qrs 5yds 60 answer 6days 9 Facit A's age A's stock acres American Tutor's Assistant amount Application Bought Bu.P.qt Bushels C.qr C.wt cent comp complete divisor D.cts DECIMALS deduct Defec Delphini ditto divi divisor & squ dols Dols.cts DRY MEASURE Facit 12 Facit 60 feet gals glish guin half pen hhds Ic.wt inches Interest inversely L. S. d Lastly LONG MEASURE miles Moidores Ovid oz.dwt oz.dwt.gr pence pezo pieces pints Prime cost Principal Proof qr.lb ratio remains root RULE OF THREE Sold SUBTRACTION Take tare TROY WEIGHT Tutor's Guide value of B's VULGAR FRACTIONS whole gain yards ΙΟ ΤΣ