## Rainey's Improved Abacus: An Explanatory Treatise on the Theory and Practice of Arithmetic and Mensuration ; in which the General Principles Involved in Practical Calculations are Thoroughly Elucidated and Illustrated by Numerous Analytic and Abbreviated Examples |

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Rainey's Improved Abacus: An Explanatory Treatise on the Theory and Practice ... Thomas Rainey No preview available - 2017 |

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20 per cent 50 cents acres ameter amount arithmetic ascer ascertain avoirdupois Bajocchi base beer gallons bushel calculations canceled cause Centesimi centum ciphers circle circumference cistern cone cost price cubic inches cylinder deducted demand denominator diam dimensions discount divide dividend divisor effect Ephah equal extract the square feet long figure find the contents foot frustum give given Guilder Hence hundredths hypotenuse improper fraction inches in diameter interest length Lira measure merator mixed number months number of decimals payment Pezza polygon pounds premium present worth principal profit proportion question quotient rate per cent ratio reduced Rials Rix Dollar rods Scudo selling price side silver sold solid square root statement subtract supposition swer tare TARE AND TRET term of answer THALER tion triangle twice usury Wei't weight whole number width wine gallons

### Popular passages

Page 46 - But if any payments 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...

Page 60 - A hare starts 12 rods before a greyhound, but is not perceived by him till she has been up 45 seconds ; she scuds away at the rate of 10 miles an hour, and the dog...

Page 45 - ... due. If the payment be less than the Interest, the surplus of interest must not be taken to augment the principal ; but interest continues on the former principal until the period when the payments, taken together, exceed the interest due...

Page 46 - 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 45 - The rule for casting interest, when partial payments have been made, is to apply the payment, in the first place, to the discharge of the interest then due. " If the payment exceeds the interest, the surplus goes towards discharging the principal, and the subsequent interest is to be computed on the balance of principal remaining due.

Page 45 - If the payment be less than the interest, the surplus of interest must not be taken to augment the principal; but interest continues on the former principal until the period when the payments, taken together, exceed the interest due, and then the surplus is to be applied towards discharging the principal; and interest is to be Computed on the balance, as aforesaid.

Page 231 - ... of the breadth, and take the depth from the under side of the deck plank to the ceiling in the hold, then multiply and divide as aforesaid, and the quotient shall be deemed the tonnage.

Page 46 - ... 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...

Page 162 - If a footman travel 240 miles in 12 days, when the days are 12 hours long; how many days will he require to travel 720 miles, wh-jn the days are 16 hours long?

Page 237 - Pythagoras' theorem states that the square of the length of the hypotenuse of a right-angled triangle is equal to the sum of the squares of the lengths of the other two sides.