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

Andrus, Woodruff & Gauntlett, 1844 - 228 σελίδες

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### Περιεχόμενα

 º 12 Commission 112 32 Compound 53 Questions for Exercise 59 of Currencies do of Coin 81 Rules for reducing the different currencies of the several United 88 Rebate a short method of finding the of any given sum 110 Discount 114
 quation of Payments r 126 Fellowship 132 Fractions Vulgar and Decimal 69 143 Interest Simple 108 157 83 159 Inverse Proportion 166 Numeration 15 188 114 199

### Δημοφιλή αποσπάσματα

Σελίδα 156 - But if any payment be made before one year's interest hath accrued, then compute the interest on the principal sum due on the obligation for one year, add it to the principal, and compute the interest on the sum paid, from the time it was paid, up to the end of the year : add it to the sum paid, and deduct that sum from the principal and interest added as above...
Σελίδα 181 - Thus, 0, 1, 2, 3, &c. 2. Add together the most convenient indices to make an index less by 1 than the number expressing the place of the term sought. 3. Multiply the terms of the geometrical series together belonging to those indices, and make the product a dividend.
Σελίδα 156 - 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.
Σελίδα 161 - Find the greatest square number in the first or left hand period, place the root of 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.
Σελίδα 153 - The amount, principa , and rate per cent, given, to find the time. RULE. — Subtract the principal from the amount ; divide the remainder by the product of the ratio and principal ; and the quotient will be the time. EXAMPLES. 1. In what time will 950 dols.
Σελίδα 137 - Divide by any number that will divide two or more of the given numbers without a remainder, and set the quotients, together with the undivided numbers, in a line beneath.
Σελίδα 193 - ... miles an hour, and the dog, on view, makes after her at the rate of 18 miles an hour : How long will the course hold, and what space will be ran over from the spot where the dog started ? Am.
Σελίδα 202 - 160 square rods make an acre. Therefore, 26x26=676 sq. rods, and 676-H 160=4 a 36 r. the Answer. ART. 2. To measure a parallelogram, or long square. RULE. Multiply the length by the breadth, and the product will be the area, or superficial content.
Σελίδα 13 - TABLE, 60 seconds (s.) - make - 1 minute, marked m. 60 minutes ------ 1 hour, - - - - h. 24 hours -------1 day, - - - - d. 7 days -------1 week, - - - - w. 4 weeks ------ 1 month, - - - - mo . 13 months, 1 day and 6 hours, ) 1 common, or ) or 365 days and 6 hours, J Julian year, ) -
Σελίδα 219 - Signed, sealed, published and declared by the said testator, BA as and for his last will and testament...