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gar, at $9, 54 cts. per cwt. each weighing 10 cwt. I gr. 141b gross, tare 14 lb. per cwt. Ans. $692, 84 cts. 2, m.ie

CASE IV. When Tret is allowed with the Tare. 1. Find the tare, which subtract from the gross, and call the remainder suttle

2. Divide the suttle by 26, and the quotient will be the tret, which subtract from the suttle, and the remainder will le the neat weight.

EXAMPLES.

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* This is the tret allowed in London. The reason of divividing by 26 . because 4 lb. is 1-26 of .04 lb. but is the tret is at any other rate, other post dhust bc tuken, according to the rate proposed, &c.

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6. What is the value of the neat weight of 4 barrels of Spanish tobacco; numbers, weights, and allowances as folows, at 9 d. per pound ?

cul, qrs. lb.
: No. 1 Gross 1 2 15)

10 25 Tare 16 lb. per cwt.
1 0 09 > Tret 4 lb. per 104 16.
0 3 21

1 Ans. £17 16s. 3d.

CASE V.
When Tare, Tret, and Cloff, are allowed :

Deduct the tare and tret as before, and divide the suttle by 168 (because 2 lb. is the rig of 3 cwt.) the quotient will be the cloff, which subtract from the suttle, and the remainder will be the meat weight.

EXAMPLES. 1. In 3 hogsheads of tobacco, each weighing 13 cwt. 3 grs. i3 lb. gross, tare 107 lb. per blid., tret 4 lb. per 104 lb., and sloff 2 lb per 3 cwt., as usual ; how much neat ?

cwt. grs. Ib.
13 3 23

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INTEREST. INTEREST is of two kinds ; Simple and Compound.

SIMPLE INTEREST. Siinple Interest is the sun paid by the borrower to tha lender for the use of money lent; and is generally at a certain rate per cent. per annum, which in several of the United States is fixed by law at 6 per cent. per annum ; that is, 61. for the use of 1001. or 6 dollars for the use of 100 do) lars for one year, &c.

Principal, is the sum lent.
Rate, is the sum per cent. agreed on,
Amaruit is the principal and interest added together.

CASE I. f'o find the interest of any given sum for one year. Rule.-Multiply the principal by the rate per cent. and diviao the product by 100; the quotient will be the answer.

EXAMPLES. 1. What is the interest of 391. 11s. 84d. for one yeas pt 61. per cent. per annum ?

£. s. d. 39 11 81

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3. What is the interest of 571l. 13s. 9d. for one year, at 0l. per cent. ?

Ans. £34 6s. 0fd. 4. What is the interest of 21. 12s. 9 d. for a year, at 61. sver cent. ?

Ans. £0 3s. 2d.

FEDERAL MONEY. art: 5. What is the interest of 468 dols. 45 cts. for one year, - at 6 per cent. ?

$ cts. 468, 45

Ans. 28/10, 70=$28, 10 cts. 7 m. Here I cut off the two right hand integers, which divide by 100: but to divide federal money by 100, you need only call the dollars so many cents, and the inferior denominalions decimals of a cent, and it is done.

Therefore you may multiply the principal by the rate, ind place the separatrix in the product, as in multiplication

federal money, and all the figures at the left of the sep:ratrix, will be the interest in cents, and the first figure nu Lue right will be mills, and the others decimals of a mill, as 1.1 the following

6. Required the interest of 133 dols. 25 cts. for a year at i per cent ?

$ cts. 135, 25

EXAMPLES.

Ans. 811, 50–88, 11 cts. 5 m. 7. What is the interest of 19 dols. 51 cts. for one year, at 6 per cent. ?

$ cts. 19, 51

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Ans. 97, 55=97 cts. 51m. 8. What is the interest of 436 dols. for one year, at 6 per cont.

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