# An Arithmetic for Preparatory Schools, High Schools, and Academies

A. Lovell & Company, 1889 - 343 σελίδες

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### Περιεχόμενα

 CHAPTER PAGE 1 DECIMAL FRACTIONs 7 Factors 26 CoMMON FRACTIONs 38 W CoMPOUND NUMBERs 75 To Find what Fractional Part one Compound Number 98 THE METRIC SYSTEM 115 SPECIAL PROBLEMs 132
 PERCENTAGE 185 INTEREST AND DISCOUNT 216 Stocks 261 INvolution AND Evolution 271 SERIEs 284 MENSURATION 299 MISCELLANEOUS EXAMPLEs 319 Πνευματικά δικαιώματα

 RATIO AND PROPORTION 157

### Δημοφιλή αποσπάσματα

Σελίδα 79 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 80 - Thirty days hath September, April, June, and November ; All the rest have thirty-one, Except the second month alone, Which has but twenty-eight, in fine, Till leap year gives it twenty-nine.
Σελίδα 78 - 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.
Σελίδα 315 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Σελίδα 38 - An Improper Fraction is one whose numerator is equal to or greater than its denominator ; as, f , -J.
Σελίδα 75 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30£ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 312 - A pyramid (Fig. 54) is a solid whose base is a polygon and whose sides are triangles uniting at a common point, called the vertex.
Σελίδα 27 - A number is divisible by 9 if the sum of its digits is divisible by 9.
Σελίδα 39 - Multiplying or dividing both numerator and denominator by the same number does not change the value of the fraction.
Σελίδα 76 - TABLE. 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.). 27 cubic feet = 1 cubic yard (cu. yd.). 53. Wood Measure is used in measuring wood and other merchandise. TABLE. 16 cubic feet = 1 cord foot (cd.