Daboll's Schoolmaster's Assistant: Improved and Enlarged. Being a Plain Practical System of Arithmetic: Adapted to the United States |
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Page 8
... think it my duty to give the labour and ingenuity of the author the tribute of my hearty approval and recommendation . New - York , March 20 , 1811 . ROGER KENNEDY . PREFACE . THE design of this work is to furnish RECOMMENDATIONS . “
... think it my duty to give the labour and ingenuity of the author the tribute of my hearty approval and recommendation . New - York , March 20 , 1811 . ROGER KENNEDY . PREFACE . THE design of this work is to furnish RECOMMENDATIONS . “
Page 54
... gives the answer . EXAMPLFS . What will 47 yds . of cloth come to at 17s . 9d . per yd . ? s . d . • Multiply by 17 9 price of 1 yard . 5 Produces 4 8 9 price of 5 yards . Multiply by 9 Foduces 89 18 1 15 9 price of 45 yards . 6 price ...
... gives the answer . EXAMPLFS . What will 47 yds . of cloth come to at 17s . 9d . per yd . ? s . d . • Multiply by 17 9 price of 1 yard . 5 Produces 4 8 9 price of 5 yards . Multiply by 9 Foduces 89 18 1 15 9 price of 45 yards . 6 price ...
Page 60
... gives [ 14s . in the quotient . 47 225 188 55 shillings remaining . Multiply by 12 and add in the 3d . produces 423 pence , which divided as above , gives [ 9d . in the quotient 423 f . s . d . s . d . 2. Divide 113 13 4 by 31 . Ans . S ...
... gives [ 14s . in the quotient . 47 225 188 55 shillings remaining . Multiply by 12 and add in the 3d . produces 423 pence , which divided as above , gives [ 9d . in the quotient 423 f . s . d . s . d . 2. Divide 113 13 4 by 31 . Ans . S ...
Page 84
... give the decimal required . EXAMPLES . 1. Reduce 12s . 6d . 3qrs . to the decimal of a pound 12 150 4 960 ) 603,000000 ( , 628125 Answer . 5760 2700 By Rule 2 . 1920 3 , 7800 12 6,75 7680 20 12,5625 1200 960 , 628125 6 2400 1920 4800 ...
... give the decimal required . EXAMPLES . 1. Reduce 12s . 6d . 3qrs . to the decimal of a pound 12 150 4 960 ) 603,000000 ( , 628125 Answer . 5760 2700 By Rule 2 . 1920 3 , 7800 12 6,75 7680 20 12,5625 1200 960 , 628125 6 2400 1920 4800 ...
Page 91
... 90 * A dollar is 7s . 6d . = 90d . in this currency of a pound ; therefore , multiplying by 8 , and dividing by 3 , gives the dollars , cents , & c . given sum , reduce them to the decimal of a REDUCTION OF CURRENCIES . 9.
... 90 * A dollar is 7s . 6d . = 90d . in this currency of a pound ; therefore , multiplying by 8 , and dividing by 3 , gives the dollars , cents , & c . given sum , reduce them to the decimal of a REDUCTION OF CURRENCIES . 9.
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Common terms and phrases
100 dollars 2qrs 3grs 3qrs acres annuity annum answer arithmetical series barter Bought bushels compound interest contain cyphers Deduct demand dimes divide the product dividend divisor dols equal EXAMPLES federal money figure Find the value gain or loss gallon geometrical series given number given quantity given sum gross guineas hundred improper fraction inches least common least common multiple left hand lowest terms measure miles mills milreas mixed numbers months Multiply the given neat weight New-England currency New-Jersey NOTE number of shillings number of terms paid payment pence piece pound pound sterling present worth principal quotient rate per cent ratio ready money Reduce remainder Required the interest right hand rods Rule of Three sell separatrix shillings simple interest sold solid feet Sqrs square root sterling subtract subtrahend sugar tare trett VULGAR FRACTIONS whole number wine
Popular passages
Page 174 - Compute the interest to the time of the first payment ; if that be one year or more from the time the interest commenced, add it to the principal, and deduct the payment from the sum total. If there be after payments made, compute the interest on the balance due to the next payment, and then deduct the payment as above; and in like manner from one payment to another, till all the payments are absorbed; provided the time between one payment and another be one year or more.
Page 190 - IS the method of finding what quantity of each of the ingredients whose rates are given, will compose a mixture of a given rate ; so that it is the reverse of Alligation Medial, and may be proved by it. CASE I. When the mean rate of the whole mixture, and the rates of all the ingredients are given, without any limited quau
Page 40 - RULE.* 1. Place the numbers so that those of the same denomination may stand directly under each other. 2. Add the first column or denomination together, as in whole numbers; then divide the sum by as many of the same denomination as make one of the next greater...
Page 184 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 180 - ... it at the right hand of the given number, (after the manner of a quotient in division) for the first figure of the root, and the square number under the period, and subtract it therefrom, and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor.
Page 220 - To measure a parallelogram or long square. RULE.— Multiply the length by the breadth, and the product will be the area, or superficial content, in the same name as that in which the dimension was taken, whether inches, feet, or rods, etc.
Page 180 - ... subtract it therefrom, and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Page 211 - A hare starts 40 yards before a grey-hound, and is not perceived by him till she has been up 40 seconds : she scuds away at the rate of...
Page 228 - In the same manner multiply all the multiplicand by the inches, or second denomination, in the multiplier, and set the result of each term one place removed to the right hand of those in the multiplicand.
Page 238 - Obligation to be void, otherwise to remain in full force and virtue.