## Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetick, Adapted to the United States |

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Page 7

... and Decimal Ensurance Interest , Simple by Decimals Compound by Decimals

Inverse Proportion Involution

and use of Supplement to Compound Numeration Practice Position Permutation

...

... and Decimal Ensurance Interest , Simple by Decimals Compound by Decimals

Inverse Proportion Involution

**Loss**and Gain Multiplication , Simple - Applicationand use of Supplement to Compound Numeration Practice Position Permutation

...

Page 126

ENSURANCE , IS a premium at so much per cent . allowed to persons and

offices , for making good the

may happen from storms , fire , & c . ISUNEXAMPLES . 1. What is the e Isurance

of 7231.

ENSURANCE , IS a premium at so much per cent . allowed to persons and

offices , for making good the

**loss**of ships , houses , merchandis ' , & c . whichmay happen from storms , fire , & c . ISUNEXAMPLES . 1. What is the e Isurance

of 7231.

Page 138

EQUATION OF PAYMENTS , Is finding the equated time to pay at once , several

debts due at different periods of time , so that no

either party . RULE . Multiply each payment by its time , and divide the sum of the

...

EQUATION OF PAYMENTS , Is finding the equated time to pay at once , several

debts due at different periods of time , so that no

**loss**shall be sus . tained byeither party . RULE . Multiply each payment by its time , and divide the sum of the

...

Page 140

...

or

in the price of their goods , so as to gain or lose so much per cent . or otherwise .

...

**LOSS**AND GAIN , Is a rule by which merchants and traders discover their profitor

**loss**in buying and selling their goods : it also instructs them how to rise or fallin the price of their goods , so as to gain or lose so much per cent . or otherwise .

Page 141

First see what the gain or

gain or

I buy Irish linen at 2s . per yara , and sell it again at 2s . 8d . per yard ; what do I ...

First see what the gain or

**loss**is by subtraction ; then As the price it cost : is to thegain or

**loss**: : so is 100l . or $ 100 , to the gain or**loss**per cent . EXAMPLES . 1. IfI buy Irish linen at 2s . per yara , and sell it again at 2s . 8d . per yard ; what do I ...

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3qrs acres added allowing amount annuity annum answer Bought Bring bushels called cent ciphers cloth common containing continue cost cube currency decimal demand denominator difference Divide dividend divisor dollars dols equal EXAMPLES farthings federal money feet figure Find the value fraction gain gallon give given given sum gross half hhds hundred inches interest length less lose loss lowest measure merchants method miles mills mixed months Multiply neat nine paid payment pence period piece pound present worth principal proportion quantity question quotient ratio received Reduce remainder right hand rods root RULE sell share shillings simple sold solid sort square subtract sugar Suppose Table tare term third thousand unit weight whole whole numbers wine yards