A Commercial Arithmetic: Designed for Academies, High Schools, Counting Rooms, and Business Colleges

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Clark & Maynard, 1884 - 331 Seiten
 

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Seite 270 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Seite 262 - To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately. Multiply the half sum and the three remainders together, and extract the square root of the product.
Seite 21 - The greatest common divisor of two or more numbers is the greatest number that will divide each of them without a remainder. Thus 6 is the greatest common divisor of 12, 18, and 24.
Seite 24 - Write the numbers in a line, and divide by any prime number that will divide two or more of them without a remainder, placing the quotients and undivided numbers in a line below.
Seite 180 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.
Seite 176 - A Compound Ratio is the product of two or more simple ratios ; as (3 : 4) x (5 : 6), or fxf . 554. A Compound Ratio is usually expressed by writt3 ing the simple ratios one under another; thus, •je
Seite 293 - O/TENS and UNITS is equal to the square of the tens, plus twice the product of the tens into the units, plus the square of the units.
Seite 124 - Find the amount of 1 dollar for 1 year ; multiply its logarithm by the number of years ; and to the product, add the logarithm of the principal. The sum will be the logarithm of the amount for the given time. From the amount subtract the principal, and the remainder will be the interest.
Seite 119 - ... made, the amount of such payments at the end of such year with interest thereon from the time of payment shall be applied : first, to liquidate the simple interest that has accrued...
Seite 22 - A common divisor of two numbers is a divisor of their sum and also of their difference.

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