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How many days did he work, and how many days was he idle ? Let x = the number of days he worked.
An Introduction to Algebra Upon the Inductive Method of Instruction - Σελίδα 35
των Warren Colburn - 1831 - 276 σελίδες
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## Arithmetical Collections and Improvements: Being a Complete System of ...

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...idle he ihould be mulâed 8 d. when 390 days were paft, neither of them were indebted to one another ; how many days did he work, and how many days was he idle ? As for every day he worked he received - '- i2d. So for every day he played he paid. - -. - 8 their...

## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1806 - 320 σελίδες
...'should be mulcted 8 Pence. When 390 Days were passed, neither of them were indebted to one another. How many Days did he Work, and how many Days was he idle ? (16) A Person being asked how old he was, answered, If I quadruple §• of my Years, and add \ of...

## A New and Complete System of Arithmetick: Composed for the Use of the ...

Nicolas Pike - 1808 - 480 σελίδες
...was absent, he should forfeit 8 cents. Now at the end of the time, there was due to him D.3 80c. : how many days did he work, and how many days was he absent ? Let r be the number of days he worked, then will 40 — r be the number of days he was absent...

## The Teachers Assistant. Or, A System of Practical Arithmetic: Wherein the ...

1811 - 198 σελίδες
...wrought, and should forfeit 10 cents for every day he was idle ; at settlement he received S^lollars. 'How many days did he work, and how many days was he idle ? Ans. Wrought 30 days, idle 10. 7. A father dying, left to his three sons A, B, and C, his estate...

## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1815 - 320 σελίδες
...was idle he should be fined 8d. When, 390 days were past, neither of them was indebted to the other. How many days did he work, and how many days was he idle ? (22) A. lent his friend B. fourscore and eleven guineas from the llth of December to the 10th of...

## The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

1817 - 198 σελίδες
...wrought, and should forfeit 10 cents for every day he was idle ; at settlement he received 5 dollars. How many days did he work, and how many days was he idle ? Ans. Wrought 30 days, idle 1O. 7. A father dying, left to his three sons A, B, and C, his estate...

## The Teachers' Assistant: Or a System of Practical Arithmetic

1824 - 198 σελίδες
...wrought, and should forfeit 10 cents for every day he was idle; at settlement he received 5 dollars. How many days did he work, and how many days was he idle? Ans. Wrought 30 days, idle 10. 7. A father dying, left to his three sons A, B, and C, his estate in...

## An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - 1826 - 276 σελίδες
...day he worked, he should receive 7s., but for every day he was idle, he should forfeit 3s. At the end of the time agreed on he received 80 shillings. How...number of days he worked. Then 20 — x = the number of Jays he was idle. x days, at 7s. a day, would come to 7 a; shillings. 20 — x, at 3s. per day, would...

## Practical and Mental Arithmetic on a New Plan: In which Mental Arithmetic is ...

Roswell Chamberlain Smith - 1827 - 196 σελίδες
...every day he was idle, he should forfeit 50 cts. at the expiration of the time he received § >5, now how many days did he work, and how many days was he idle ! A. He wrought 52 days, and was idle 28 days. ANNUITY Is a sum of money payable every year, or for...

## An Introduction to Algebra Upon the Inductive Method of Instruction

Warren Colburn - 1828 - 276 σελίδες
...day he worked, he should receive 7s., but for every day he was idle, he should forfeit 3s. At the end of the time agreed on he received 80 shillings. How...days he was idle. x days, at 7s. a day, would come to T x shillings. 20 — x, at 3s. per day, would be 60 — 3 x shillings. This must be taken out of 7...