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What is the two-digit number whose digits add up to 12, and when the digits are swapped, the resulting number is 12 less than twice the original number?
Let's call the tens digit x and the ones digit y. We know that x + y = 12 and 10y + x = 2(10x + y) - 12. Solving the first equation for x, we get x = 12 - y. Substituting this into the second equation, we get 10y + (12 - y) = 2(10(12 - y) + y) - 12. Simplifying, we get 9y + 12 = 240 - 18y - 12. Combining like terms, we get 27y = 216, so y = 8. Plugging this back into x = 12 - y, we get x = 4. Therefore, the two-digit number is 48. **
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Sharp EL-331ERB calculator Desktop Basic SilverThe EL331ERB is 10 digit model in Sharp’s most popular desktop series and is updated with a metallic look finish and a stylish shiny cover for the solar panel and LCD screen. To minimise the number of key presses and to save time, a currency convertor and tax calculation function is included as standard.The EL331ERB is perfect for any user who requires reliability, good looks, and a larger 10 digit screen for displaying longer calculations.Desk top calculator with 10-digit display, Euro-conversion function.- Large 10-Digit slant Display- Twin Power Source (battery and solar)- Currency Conversion- Tax Calculation- 3-Digit-Punctuation- Sign Change19,49 £*Shipping: 0,00 £Secure redirect to the provider
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Sharp EL-1501 calculator Desktop Printing Multicolour, WhiteThe EL-1501 Compact Paperless Printing Calculator is a unique and powerful calculator, perfect for those that need the power of a printing calculator with the functionality of a desktop calculator. The EL-1501 features a 12 digit backlit LCD display with a 5 line scrolling LCD display. This larger scrolling display allows a user to go back and view up to 300 previous entries. The Compact Paperless Printing Calculator is whisper quiet, making it usable in any office environment. Other features include Cost/Sell/Margin, 4 key memory, tax keys, change sign key, grand total key, backspace key, and selectable decimal and rounding keys. This unique compact paperless printing calculator is cordless and powered by 4 AA batteries. 6 month limited warranty.55,99 £*Shipping: 0,00 £Secure redirect to the provider
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Products related to Sharp-EL-337C-12-Digit-Semi-Desktop:
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What is the two-digit number whose digits add up to 12, and when the digits are swapped, the resulting number is 12 less than twice the original number?
Let's call the tens digit x and the ones digit y. We know that x + y = 12 and 10y + x = 2(10x + y) - 12. Solving the first equation for x, we get x = 12 - y. Substituting this into the second equation, we get 10y + (12 - y) = 2(10(12 - y) + y) - 12. Simplifying, we get 9y + 12 = 240 - 18y - 12. Combining like terms, we get 27y = 216, so y = 8. Plugging this back into x = 12 - y, we get x = 4. Therefore, the two-digit number is 48. **
Similar search terms for Sharp-EL-337C-12-Digit-Semi-Desktop
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Sharp EL-331ERB calculator Desktop Basic SilverThe EL331ERB is 10 digit model in Sharp’s most popular desktop series and is updated with a metallic look finish and a stylish shiny cover for the solar panel and LCD screen. To minimise the number of key presses and to save time, a currency convertor and tax calculation function is included as standard.The EL331ERB is perfect for any user who requires reliability, good looks, and a larger 10 digit screen for displaying longer calculations.Desk top calculator with 10-digit display, Euro-conversion function.- Large 10-Digit slant Display- Twin Power Source (battery and solar)- Currency Conversion- Tax Calculation- 3-Digit-Punctuation- Sign Change19,49 £*Shipping: 0,00 £Secure redirect to the provider
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Sharp EL-1501 calculator Desktop Printing Multicolour, WhiteThe EL-1501 Compact Paperless Printing Calculator is a unique and powerful calculator, perfect for those that need the power of a printing calculator with the functionality of a desktop calculator. The EL-1501 features a 12 digit backlit LCD display with a 5 line scrolling LCD display. This larger scrolling display allows a user to go back and view up to 300 previous entries. The Compact Paperless Printing Calculator is whisper quiet, making it usable in any office environment. Other features include Cost/Sell/Margin, 4 key memory, tax keys, change sign key, grand total key, backspace key, and selectable decimal and rounding keys. This unique compact paperless printing calculator is cordless and powered by 4 AA batteries. 6 month limited warranty.55,99 £*Shipping: 0,00 £Secure redirect to the provider
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Sharp EL-2607LG calculator Desktop Printing Black, WhiteSharp EL-2607LG. Form factor: Desktop, Type: Printing. Digits: 12 digits, Backlight display. Print speed: 270 lpm. Currency converter, Tax calculation. Power source: AC/Battery. Product colour: Black, White112,99 £*Shipping: 0,00 £Secure redirect to the provider
* All prices are inclusive of VAT and, if applicable, plus shipping costs. The offer information is based on the details provided by the respective shop and is updated through automated processes. Real-time updates do not occur, so deviations can occur in individual cases. ** Note: Parts of this content were created by AI.