Howard's California calculator and golden rule for equation of payments

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C. F. Howard, 1878 - 94 páginas
 

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Página 83 - Multiply each debt by its term of credit, and divide the sum of the products by the sum of the debts. The quotient will be the average term of credit.
Página 38 - RULE. Divide as in whole numbers, and from the right hand of the quotient point off as many places for decimals as the decimal places in the dividend exceed those in the divisor.
Página 38 - RULE. Multiply as in whole numbers, and from the right hand of the product point off as many figures for decimals as there are decimal places in both factors.
Página 7 - An Aliquot Part of a number is such a part as will exactly divide that number; thus, 3, 5, and 7£ are aliquot parts of 15.
Página 41 - Exactness requires the addition, to every three hundred bushels, of one extra bushel. The foregoing rule may be used for finding the number of gallons, by multiplying the number of bushels by 8. If the corn in the box is in...
Página 44 - How to find the number of acres in any plot of land, the number of rods being given. RULE. — Divide the number of rods by 8, multiply the quotient by 5, and remove the decimal point two places to the left. The diameter being given, to find the circumference. RULE. — Multiply the diameter by 3 1-7.
Página 10 - EXCHANGE, the receiving or paying of money in one place for an equal sum in another, by order, draft, or bill of exchange.
Página 52 - For each ball brick added to the thickness of the wall, add seven bricks. A bricklayer's hod measuring 1 ft. 4 in. X 9 in. X 9 in., equals 1,296 inches in capacity, and will contain 20 bricks. A load of mortar measures 1 cubic yard, or 27 cubic feet; requires 1 cubic yard of sand, and 9 bushels of lime, and will fill 30 hods. Plasterers...
Página 50 - General rule for measuring timber, to find the solid contents in feet. RULE. — Multiply the depth in inches by the breadth in inches, and then multiply by the length in feet, and divide by 144. To find the number of feet of timber in trees with the bark on. RULE. — Multiply the square of one-fifth of the circumference in inches, by twice the length, in feet, and divide by 144.
Página 63 - A number is divisible by 3 when the sum of its digits (figures) is divisible by 3 ; it is divisible by 9, when the sum of its digits is divisible by 9.

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