Elementary AlgebraRivingtons, 1870 - Algebra |
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Page 62
... cost £ 66 , and the silk is twice as valuable as the cloth . Find · the cost of a yard of each . 11. Find the number , the double of which being 62 PROBLEMS LEADING TO SIMPLE EQUATIONS .
... cost £ 66 , and the silk is twice as valuable as the cloth . Find · the cost of a yard of each . 11. Find the number , the double of which being 62 PROBLEMS LEADING TO SIMPLE EQUATIONS .
Page 156
... cost of 1 lb. of each ? 20. The cost of 12 horses and 14 cows is £ 380 : the cost of 5 horses and 3 cows is £ 130 : what is the cost of a horse and a cow respectively ? 21. The cost of 8 yards of silk and 19 yards of cloth is £ 18 . 4s ...
... cost of 1 lb. of each ? 20. The cost of 12 horses and 14 cows is £ 380 : the cost of 5 horses and 3 cows is £ 130 : what is the cost of a horse and a cow respectively ? 21. The cost of 8 yards of silk and 19 yards of cloth is £ 18 . 4s ...
Page 160
... cost of ingredients = cost of mixture . Ex . I mix wine which cost 10 shillings a gallon with another sort which cost 6 shillings a gallon , to make 100 gal- 79 lons , which I may sell at 7 shillings 160 PROBLEMS RESULTING IN.
... cost of ingredients = cost of mixture . Ex . I mix wine which cost 10 shillings a gallon with another sort which cost 6 shillings a gallon , to make 100 gal- 79 lons , which I may sell at 7 shillings 160 PROBLEMS RESULTING IN.
Page 161
... costs 36 pence a quart , the other 20 pence . How much of each must he put in a mixture of 50 quarts , so that the cost price of it may be 30 pence a quart ? 47. A grocer mixes tea which cost him 1s . 2d . per lb. with tea that cost him ...
... costs 36 pence a quart , the other 20 pence . How much of each must he put in a mixture of 50 quarts , so that the cost price of it may be 30 pence a quart ? 47. A grocer mixes tea which cost him 1s . 2d . per lb. with tea that cost him ...
Page 194
... cost of an apple in pence . If I buy a sheep for z pounds , Z 30 will represent the cost of a sheep in pounds . Ex . A boy bought a number of oranges for 16d . Had he bought 4 more for the same money , he would have paid one - third of ...
... cost of an apple in pence . If I buy a sheep for z pounds , Z 30 will represent the cost of a sheep in pounds . Ex . A boy bought a number of oranges for 16d . Had he bought 4 more for the same money , he would have paid one - third of ...
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Common terms and phrases
2ab+b² a+b-c a²+2ab+b² a²+b² Algebra arithmetic means Arithmetical Progression Cambridge coefficient College List Crown 8vo denominator denote difference Divide Dividend division divisor Edition equal Find the number Find the value following expressions gallons Geometrical Progression given greater Greek Hence Highest Common Factor integer less logarithms miles an hour Multiply negative Nonary number of permutations number of terms obtain positive proceed proper fraction q factors quadratic equation quantity quotient radix ratio remainder represent the number result Rivington's School rules scale whose radix School and College second term Senary shew shillings sides Simplify solve the equations square root Subtracting surds take the square things taken third Thomas Kerchever Arnold tion unknown symbol whole number
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Page 253 - ... if the multiple of the first be less than that of the second, the multiple of the third is also less than that of the fourth ; or, if the multiple of the first be equal to that of the second, the multiple of the third is also equal to that of the fourth ; or, if the multiple of Book V.
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Page 328 - A number is divisible by 11 if the difference between the sum of the digits in the even places and the sum of the digits in the odd places is either 0 or a multiple of 11.
Page 292 - Recall the general formula for the number of combinations of n different things taken r at a time, C(n,r) n\ r!(nr)!
Page 328 - Suppose that a*=n, then x is called the logarithm of n to the base a : thus the logarithm of a number to a given base is the index of the power to which the base must be raised to be equal to the number. The logarithm of n to the base a is written log.