Beginners' Algebra, Book 1

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Rand McNally, 1922 - Algebra - 303 pages
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Page 11 - Multiply as in the multiplication of integers, and point off" as many decimal places in the product as there are decimal places in both multiplicand and multiplier.
Page 271 - A cistern can be filled by two pipes running together in 2 hours 55 minutes. The larger pipe by itself will fill it sooner than the smaller by 2 hours. What time will each pipe separately take to fill it?
Page 142 - Similarly, if the sum of the digits of a number is divisible by 3, the number is divisible by 3.
Page 116 - Two men, A and B, start from the same place at the same time, and travel the same way ; A travels 52 miles a day, and B 44 miles a day ; how far apart will they be at the end of 10 days ? 15.
Page 159 - To find the area of a triangle. — Multiply the base by the perpendicular height, and half the product will be the area.
Page 177 - V = ^^ where r is the radius of the base and h is the height of the cone.
Page 116 - A and B start from the same place and travel in the same direction, A at the rate of 9 miles an hour and B 6 miles ; how far apart are they in 1 hour ? In 5 hours?
Page 141 - Divide the numerical coefficient of the dividend by the numerical coefficient of the divisor ; and to the result annex the letters, giving to each letter an exponent equal to its exponent in the dividend minus its exponent in the divisor.
Page 217 - A common multiple of two or more expressions is an expression which can be divided by each of them without a remainder.
Page 89 - ... the product of a positive number and a negative number is a negative number and that the product of two positive numbers is a positive number.

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