The Rational Arithmetic: In which the Science is Fully Developed, the Art Clearly Explained, and Both Combined in Numerous Illustrations ... to which is Added a KeyT. Billings, 1847 - 330 sider |
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Vanlige uttrykk og setninger
acres added addition altitude amount annuity answer required apiece apples ascertain barrels base bought bushels called cent ciphers circle cloth composed compound contained contents cord cost cube cubic decimal denominator diameter difference divide dividend divisor dollars equal EXERCISES explain the following expressed Extract extreme factors feet figure FIND following problems foot four fraction gain gallons given gives half Hence horses hundred inches instalment interest least common length less lower manner measuring miles MODEL months multiply OBSERVE obtain paid pair payment piece pounds present worth principal quantity quarts quotient ratio received RECITATION Reduce remain rods root share shillings side sold solve and explain square subtracted surface tens thick third thousand units weeks weight whole wide write yards
Populære avsnitt
Side 219 - Multiply each payment by its term of credit, and divide the sum of the products by the sum of the payments ; the quotient will be the average term of credit.
Side 175 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.
Side 264 - The lateral area of a frustum of a regular pyramid is one half the product of the slant height and the sum of the perimeters of the bases.
Side 167 - The RATIO of one quantity to another of the same kind is the quotient arising' from dividing the first quantity by the second.
Side 158 - A pile of wood 8 feet long, 4 feet wide, and 4 feet high, contains 1 cord ; and a cord foot is 1 foot in length of such a pile.
Side 262 - The Diameter of a circle is a straight line passing through the centre, and terminating at both ends in the circumference.
Side 183 - If 6 men in 16 days of 9 hours each build a wall 20 feet long, 6 feet high, and 4 feet thick, in how many days of...
Side 266 - Ans. 41° 24' 35"; 55° 46' 16"; and 82° 49' 09". SOLUTION OF RIGHT•ANGLED TRIANGLES. 34. The unknown parts of a right•angled triangle may be found by either of the four last cases ; or, if two of the sides are given, by means of the property that the square of the hypothenuse is equivalent to the sum of the squares of the two other sides. Or the parts may be found by Theorems IV. and V. EXAMPLES. 1. In a right•angled triangle BAC, there are given the hypothenuse 5(7=250, and the base AC=...
Side 222 - RULE. Multiply each quantity by its price, and divide the sum of the products by the sum of the quantities.
Side 250 - The first term, the last term, and the number of terms being given, to find the sum of all the terms. RULE. Multiply the sum of the extremes by the number of terms/ and half the product will be the answer.