Mathematics for Common Schools: A Manual for Teachings, Including Definitions, Principles, and Rules and Solutions of the More Difficult ProblemsD.C. Heath & Company, 1895 - 312 σελίδες |
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Σελίδα 160
... diameter twice radius - = 4 ft . 8. One goes 48 mi . per hour ; the other goes the same distance in the same time . 9. Area of first 4 × 212. Reduce . 63 × 41 = 64 ; of second - 4 x 2 Ratio = = 1051. 2. Cost of farm = $ 75.50 × 1561 ...
... diameter twice radius - = 4 ft . 8. One goes 48 mi . per hour ; the other goes the same distance in the same time . 9. Area of first 4 × 212. Reduce . 63 × 41 = 64 ; of second - 4 x 2 Ratio = = 1051. 2. Cost of farm = $ 75.50 × 1561 ...
Σελίδα 182
... diameter of the circle , and ascertain the ratio . 12. See Art . 1274 , 6-14 , for the reason for the rule for de- termining the area of a circle . = 13. The circumference ( 2x × 3.1416 ) = 3.1416x ; the diameter x ; the area 3.1416 ...
... diameter of the circle , and ascertain the ratio . 12. See Art . 1274 , 6-14 , for the reason for the rule for de- termining the area of a circle . = 13. The circumference ( 2x × 3.1416 ) = 3.1416x ; the diameter x ; the area 3.1416 ...
Σελίδα 183
... Diameter = 15.708 ft . 3.1416 = 5 ft . Area [ ( of 15.708 ) × ( of 5 ) ] sq . ft . 1108. The balance , $ 851.72 , is found by adding the credits , and subtracting from $ 2535.35 in one operation . See Art . 384 . 1110. 1. Amount of ...
... Diameter = 15.708 ft . 3.1416 = 5 ft . Area [ ( of 15.708 ) × ( of 5 ) ] sq . ft . 1108. The balance , $ 851.72 , is found by adding the credits , and subtracting from $ 2535.35 in one operation . See Art . 384 . 1110. 1. Amount of ...
Σελίδα 191
... diameter , measures nearly 2 yd . Nine revolutions of the wheel should indicate a trifle over 20 yd . on the cyclometer ; 8 revolutions should indicate a trifle over mile , 17.6 yd . = = 3. The premium of of $ 6000 $ 33.75 . The loss ...
... diameter , measures nearly 2 yd . Nine revolutions of the wheel should indicate a trifle over 20 yd . on the cyclometer ; 8 revolutions should indicate a trifle over mile , 17.6 yd . = = 3. The premium of of $ 6000 $ 33.75 . The loss ...
Σελίδα 195
... diameter ; that is , of 100 sq . ft . 25. The area of the sector is that of the circle . Area of circle = 100 x 3.1416 . - 1125. 2. See Supplement for the definitions . 3. $ 6.75 is what per cent of $ 2700 ? 6. The note is due April 13 ...
... diameter ; that is , of 100 sq . ft . 25. The area of the sector is that of the circle . Area of circle = 100 x 3.1416 . - 1125. 2. See Supplement for the definitions . 3. $ 6.75 is what per cent of $ 2700 ? 6. The note is due April 13 ...
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acres algebraic altitude amount angle answer apothem Arithmetic base bisecting calculate Cancel cents chord ciphers circle circumference common fraction construct contains convex surface cost days of grace deducting diameter difference discount dividend dividing division draft draw drawn employed equal equation examples exercises factors figure frustum given gives greatest common divisor Heart of Oak hypotenuse improper fraction inches interest intersecting least common multiple length measure method minuend mixed numbers multiplying NOTES ON CHAPTER number of degrees number of square obtain par value payment perpendicular pounds principal problems profits protractor pupils quarts quotient radius rectangle reduce remaining result rhombus right-angled triangle rods RULE scholars selling price side slant height solve subtract subtrahend teacher whole number write yards