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" The sum of the digits of a certain number of two figures is 5, and if 3 times the units' digit is added to the number, the order of the digits will be reversed. What is the number? 59. Twice the units... "
An Exercise Book in Algebra: Designed for Supplementary Or Review Work in ... - Page 134
by Matthew Scoby McCurdy - 1894 - 173 pages
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The Practical Analyst: Or, A Treatise on Algebra, Containing the Most Useful ...

Enoch Lewis - Algebra - 1826 - 180 pages
...places of figures, is equal to the difference of the squares of its digits ; and if 36 be added to it, the order of the digits will be inverted ; what is the number? Ans. 48. 19. A vintner proposing to mix three sorts of wine, viz. at 65 cents per gallon, at 45 cents,...
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A Treatise on Algebra: For the Use of Schools and Colleges

Stephen Chase - Algebra - 1849 - 348 pages
...number is expressed by two digits whose sum is 9 ; and if it be increased by five-thirds of itself, the order of the digits will be inverted. What is the number ? Let x — the left hand digit, and y = the right hand digit. Then 1Qx-\-y — the number, &c. 14....
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An Introduction to Algebra: Being the First Part of a Course of Mathematics ...

Jeremiah Day - Algebra - 1859 - 422 pages
...second and third ; the second is equal to the sum of the third and fourth ; and if 8082 be taken from the number, the order of the digits will be inverted. What is the number ? i Ans. 9541. V 912. If in the algebraic statement of the conditions of a problem, the original equations...
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New University Algebra: A Theoretical and Practical Treatise, Containing ...

Horatio Nelson Robinson - Algebra - 1863 - 432 pages
...places of figures, unite and tens ; the number is equal to 4 times the sum of its digits, and if 27 be added to the number, the order of the digits will be inverted. What is the number ? NOTE 1. Let x represent the digit in the place of tens, and y the digit in place of units ; then...
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New University Algebra: A Theoretical and Practical Treatise, Containing ...

Horatio Nelson Robinson - Algebra - 1864 - 444 pages
...places of figures, units and tens; the number is equal to 4 times the sum of its digits, and if 27 be added to the number, the order of the digits will be inverted. What is the number? NOTE 1. Let x represent the digit in the place of tens, and y the digit in place of units; then 1ux+y...
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A Collection of Algebraic Problems, Designed for Drill and Review in ...

Joseph Ficklin - Algebra - 1874 - 204 pages
...quotient will be equal to the less. Ans. 13 and 4. 18. A certain number consists of two digits. If 9 be added to the number, the order of the digits will be inverted, and if 10 be subtracted from the number, the remainder will be equal to the sum of the squares of the...
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The Complete Algebra: Designed for Use in Schools, Academies, and Colleges

Joseph Ficklin - Algebra - 1874 - 446 pages
...distance, 5 miles. 18. A number expressed by two digits is four times the sum of the digits, and if 27 be added to the number the order of the digits will be inverted; find the number. Let x = the left digit, and у = the right digit ; then, since x stands in the place...
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New Elementary Algebra: Containing the Rudiments of the Science for Schools ...

Horatio Nelson Robinson - Algebra - 1875 - 338 pages
...consisting of two places, a unit and a ten, is four times the sum of its digits, and if 27 be added to i^ the order of the digits will be inverted. What is the number ? NOTE. — The local value of a figure is increased tenfold by every remove to the left of the unit's...
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New Elementary Algebra: Containing the Rudiments of the Science for Schools ...

Horatio Nelson Robinson - Algebra - 1879 - 332 pages
...consisting of two places, a unit and a ten, is four times the sum of its digits, and if 27 be added to it, the order of the digits will be inverted. What is the number ? NOTE. — The local value of a figure is increased tenfold by every remove to the left of the unit's...
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The Academic Algebra

William Frothingham Bradbury, Grenville C. Emery - Algebra - 1889 - 428 pages
...the hundreds' place is equal to the difference between the digits in the tens' and the units' place ; and if 594 is added to the number, the order of the digits will be reversed. What is the number ? NOTE. It will often be best to represent a GP as follows : я?, x'У,...
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