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January 31, 2015

January 31, 2015

Posted by **Caryls** on Thursday, September 29, 2011 at 11:27pm.

1. Write a simplified function for the procedures taken in Chocolate Math. Use a variable to represent the number of times a person would like to have chocolate each week.

2. Write a simplified function that represents the number and a person’s age.

3. Prove algebraically that these two functions are equivalent.

The grading rubric is on the following page.

- Math -
**Reiny**, Friday, September 30, 2011 at 12:10am1. pick a number -- x

2. multiply by 2 -- 2x

3. add 5 -- 2x+5

4. multiply by 50 -- 50(2x+5) = 100x + 250

5. add 1761 -- 100x + 250 + 1761 = 100x + 2011

6. I was born in 1940, so subtract that

100x + 2011 - 1940 = 100x + 71

So whatever you pick for x , would move into the hundreds position of your final answer.

Thus the first number is the choice , the last two numbers are the age.

The rules for step5 would change from year to year, in the next year (2012) we have to add 1762, etc.

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