Problem 1 week 5
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Problem #1 Week 5. BY: Alexis Rapach :P. Problem . My number is 3 fewer than the sum of A and B. A is the smallest positive multiple of 13 for which the sum of its digits is prime. B is twice the value of the R oman numeral DXLIX. What is my number?. Step 1.

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Problem #1 Week 5

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Problem 1 week 5

Problem #1 Week 5

BY: Alexis Rapach :P


Problem

Problem

  • My number is 3 fewer than the sum of A and B. A is the smallest positive multiple of 13 for which the sum of its digits is prime. B is twice the value of the Roman numeral DXLIX. What is my number?


Step 1

Step 1

  • First I found the roman numeral DXLIX. It was 549 so I had to double it so now I have 1098.

549

+ 549

1098


Step 2

Step 2

  • Then after I found the roman numeral I had to find the smallest positive multiple and it had to be prime. So I started with the smallest multiple of 13 and continue with the next smallest until finding one that fits the problem.

  • 13} 1 + 3 = 4 which is not prime

  • 26} 2 + 6 = 8 which is not prime

  • 39} 3 + 9 = 12 which is not prime

  • 52} 5 + 2 = 7 which is prime


Step 3

Step 3

  • After I found the Roman Numeral and the smallest positive multiple of 13 that’s prime, I added them together; 1098 + 52 = 1150 and in the problem if you read it says 3 less than the sum of A and B. And if the sum for A is 52 and the sum for B is 1098 and they equal 1150 together than I need to subtract 3 from 1150 and I get; 1150 – 3 = 1147


Problem 1 week 5

ANSWER

1147


Websites used for pictures

Websites used for pictures

  • \http://chronizt.info/wp-content/uploads/2010/08/Funny-Math-Answers-4.jpg(elephant)

  • http://www.innocentenglish.com/funny-pics/best-pics/funny-math-test-answer1.jpg(stupid X)

  • http://jacobyap.com/wp-content/uploads/2010/02/math09.gif(funny angle)

  • http://www.asklopan.com/pictures/funny%20test%20answers%20(11).jpg(funny giraffe)

  • http://icanhascheezburger.files.wordpress.com/2008/08/funny-pictures-cat-did-the-math-and-you-cannot-afford-the-dog.jpg (funny Cat)

  • http://haha.nu/files/uploads/2006/funny-math/06.jpg(expand)

  • http://www.almightydad.com/wp-content/uploads/2009/09/funny_math_logic_03.jpg (3-2 people)


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