Shop Mathematics ...: Shop arithmeticMcGraw-Hill book Company, 1912 |
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Αποτελέσματα 1 - 5 από τα 37.
Σελίδα 45
... force in a shop is cut down from 85 men to 62. What per cent of the original number of men are retained ? 62 62 is of 85 . 85 62 85 = = .729 72.9 % 62 is 72.9 % of 85 . Therefore , the number of men retained is 72.9 % or nearly 73 % of ...
... force in a shop is cut down from 85 men to 62. What per cent of the original number of men are retained ? 62 62 is of 85 . 85 62 85 = = .729 72.9 % 62 is 72.9 % of 85 . Therefore , the number of men retained is 72.9 % or nearly 73 % of ...
Σελίδα 46
... force is working . If the full force of men is 1300 , then the present force is 50 % of 1300.50X1300 = 650 . If the full force were 700 men , then the 50 % would be 350 . Another very common use of percentage is in stating the por ...
... force is working . If the full force of men is 1300 , then the present force is 50 % of 1300.50X1300 = 650 . If the full force were 700 men , then the 50 % would be 350 . Another very common use of percentage is in stating the por ...
Σελίδα 49
... force in a shop is increased from 160 to 200 men , what per cent is the capacity of the shop increased ? 200 ÷ 160 1.25 1.25 = 125 % 200 of Explanation : The present force is 1 or 1.25 of the old force , because 200 is 388 125 % -100 ...
... force in a shop is increased from 160 to 200 men , what per cent is the capacity of the shop increased ? 200 ÷ 160 1.25 1.25 = 125 % 200 of Explanation : The present force is 1 or 1.25 of the old force , because 200 is 388 125 % -100 ...
Σελίδα 115
... force P applied at one end has toward lifting the weight W at the other end . If F is close to W , a comparatively small force P may be able to raise the weight W , but if F is moved away from W and placed close to P , then a greater force ...
... force P applied at one end has toward lifting the weight W at the other end . If F is close to W , a comparatively small force P may be able to raise the weight W , but if F is moved away from W and placed close to P , then a greater force ...
Σελίδα 116
... force P has a moment , which is the product of the force P and the distance from P to the fulcrum F. If the force and the weight just balance each other , their moments are equal . The length from P to F is called the force arm and the ...
... force P has a moment , which is the product of the force P and the distance from P to the fulcrum F. If the force and the weight just balance each other , their moments are equal . The length from P to F is called the force arm and the ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
Answer bolt brake calculate cast iron Centigrade cents CHAPTER cipher circle circumference column compression countershaft crank Cube root root Cube Square Cube cylinder decimal places decimal point denominator diameter difference distance divided dividend divisor dollar driven gear efficiency equal Example exerted Explanation Fahrenheit figure foot-pounds force arm formula fulcrum given number gives heat Hence hoist horse-power improper fraction inclined plane lathe lead screw length lever lift lineshaft load machine mean effective pressure mechanical advantage mechanical efficiency mixed number movable block move the decimal multiply necessary numbers of teeth piece pounds PROBLEMS pulley pump pyrometer quotient radius raised reduced revolutions per minute ROOTS OF NUMBERS.-Continued rope shaft sheave shown in Fig specific gravity speed ratio Square Cube root Square Cube Square square inch square root steam engine steel stress stroke subtract temperature threads per inch trial divisor weight arm wheel whole number
Δημοφιλή αποσπάσματα
Σελίδα 7 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year...
Σελίδα 89 - Written as a formula this would read This can be illustrated by drawing squares on each side, as in Fig. 29, and noting that the area of the square on the hypotenuse is equal to the sum of the areas of the other two.
Σελίδα 38 - Subtract the number of decimal places in the divisor from the number of decimal places in the dividend, and point off as many decimal places in the quotient as there are units in the remainder thus found.
Σελίδα 146 - MEP in pounds per square inch; A = area of piston in square inches; L = length of stroke in feet ; N= number of working strokes per minute.
Σελίδα 37 - To divide by 10, move the decimal point one place to the left. To divide by 100, move the decimal. point two places to the left, and so on for other powers of 10.
Σελίδα 3 - An Improper Fraction is one whose numerator is equal to, or greater than, the denominator; as, f, f.
Σελίδα 133 - Fig. 49. We will solve this problem partly graphically and partly by calculation. The first step is to find how fast the crank pin D is moving. For one turn of the crank, D travels through a distance equal to the circumference of a circle whose radius is R, that is, a distance of 2'ffTi.
Σελίδα 38 - EULE.—Divide as in whole numbers, and point off as many decimal places in the quotient as the number of decimal places in the dividend exceeds the number in the divisor.
Σελίδα 5 - When the numerator is less than the denominator, the value of the fraction is less than 1. 5th. When the numerator is equal to the denominator, the value of the fraction is equal to 1. 6th. When the numerator is greater than the denominator, the value of the fraction is greater than 1.
Σελίδα 61 - In any proportion, the product of the means is equal to the product of the extremes.