14 articles trouvés pour ce sujet.
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The difference between the ares of two rectangles |
2016-06-09 |
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Ingrid pose la question : I am trying to help my son with an area question.
I have the answer, from the solutions, but I cannot figure out how to teach him.
Question:
Two rectangles have lengths 13cm and 19cm respectively.
Their total area is 376cm squared.
If both their widths are whole numbers, what is the difference in their areas?
I know that this is solvable once I determine the widths of the rectangles ,
but how do I go about finding that?
Thanks for your help Chris Fisher and Harley Weston lui répond. |
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A procedure for finding a square root |
2015-08-27 |
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Tracey pose la question : Is there a method/process to determine the square root of a large number?
For example, Tiananmen Square's area is 396 900m sq., what is the side length?
Thank you,
Tracey Harley Weston lui répond. |
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Express the HCF of 1232 and 573 as 1232x + 573y = 1 |
2009-02-22 |
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Anonymous pose la question : Express the HCF of 1232and 573 as 1232x + 573y = 1. Victoria West lui répond. |
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Discovering the incircle of an irregular polygon |
2007-05-25 |
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Joaquim pose la question : I've been searching in some books and many websites, but I couldn't find a formula or algorithm for discovering the incircle of an irregular polygon, could you please help me? Walter Whiteley lui répond. |
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Greatest common divisor |
2007-03-14 |
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Marie pose la question : How do I prove this?
Let h be the greatest common divisor of the positive integers a and b.
Show that there exist integers p and q (not necessarily positive) such that
pa + qb = h.
Thanks Penny Nom lui répond. |
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Show that 3k+2 and 5k+3 are relatively prime |
2007-01-15 |
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Andrea pose la question : show that if k is a positive integer, then 3k+2 and 5k+3 are relatively prime Penny Nom lui répond. |
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How many children were there? |
2006-05-14 |
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Geecee pose la question : At a local village gala, the entire population turned up, 500 people. The event raised £3,000. Tickets were priced as follows: £7.48 men, £7.12 women and £0.45 children.
How many children were there? Stephen La Rocque lui répond. |
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Finding square roots |
2006-04-12 |
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Fehmida pose la question : I would like to know about tricks or formulas to do complicated square roots.
ex. square root of 1029 Penny Nom and Steve La Rocque lui répond. |
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The Euclidean Algorithm |
2002-01-31 |
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Murray pose la question : Can you please explain to me why the euclidean algorithm works? Penny Nom lui répond. |
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Reduce 79,537/3,623,420 |
2001-12-13 |
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Eliana pose la question : How do you reduce 79,537/3,623,420. Claude Tardif lui répond. |
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A calculation with 6 numbers |
2001-06-16 |
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Edwin pose la question : I'm asked to come with, and program (in Ansi -C) an algorithm that calculates all the possible results of a calculation with 6 numbers and one result. For example: I want all calculations with the numbers 3, 3, 8, 8, 2, 9, and with a result of 786. all numbers may be used once, arithmetical operations allowed are + - / *, fractions are not allowed. The problem here is what is a fast method to do this (i.e. what's algorithm that can to this). Claude Tardif lui répond. |
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Why does division start from the left? |
2000-05-24 |
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Salil Dave pose la question : Addition, subtraction and multiplications start with right most digit and proceed left, but division starts from left-most digits and goes right ... why? Harley Weston lui répond. |
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Algorithms for roots |
1996-02-22 |
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Charles Hewitt pose la question : I have seen an algorithm for finding the square root of numbers. Are there similar such algorithms for higher roots? Harley Weston lui répond. |
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Prime numbers |
1996-02-22 |
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Charles Hewitt pose la question : I would apprecaite it if you could share with me any algorithm to determine whether a number is prime. Penny Nom lui répond. |
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