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Expert: Robi Bhattacharjee - 3/10/2009


Question
QUESTION: Hello:

I read the following in an old business mathematics textbook: "Express 13 mills as a decimal part of $1.00."

I can determine the answer as follows: There are 1000 mills in or per $1.00. 13 mills divided by 1000 mills/$1.00 equals $0.013, the answer.

My question isas follows: What does "...as a decimal part of $1.00" indicate or represent from "Express 13 mills as a decimal part of $1.00."?

I thank you for your reply.

ANSWER: Hi Kenneth,

I'm not sure what you are asking. Are you asking what 13 mills represent or something?

Anyways, could you please restate your question?

Thanks,
Robi

---------- FOLLOW-UP ----------

QUESTION: Hello:  

I want to thank you for your reply.

13 mills equals $0.013.
What does $0.013 as a decimal part of $1.00 indicate. In other words, what does "...a decimal part of $1.00" represent?
I cannot explain it better.

I thank you for your reply.

Answer
Hi Kenneth,

0.013 dollars as a decimal part of 1.00 is basically representing what fraction as a decimal it is. Essentially, it is useful for comparing different things. Say I ask you what is bigger, 5 cents, or 3456 mills, the way you would go about finding it is transforming them both to decimal parts of 1.00. Then, whichever one is bigger is the larger one.



I hope this helps,
Robi

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Robi Bhattacharjee

Expertise

I can answer a variety of questions on mathematics. Questions on trigonometry, calculus(preferably single variable), algebra, geometry, and number theory will be answered. I cannot answer questions on abstract branches of mathematics such as group theory. I also cannot answer questions on statistics. In number theory, I can answer questions on congruences, prime numbers, units, functions, and the riemann-zeta function.

Experience

I have studied advanced math my entire life. I started calculus in sixth grade. I have attended numerous math competitions and I am attending math organizations such as the San-Diego math circle. Also, this year I have been invited to the USAMO which is a prestigious math competition (Every year the USAMO invites 500 students from across the USA to participate in this competition. The top 6 go to represent the USA in the International Math Olympiad).

Organizations
I am in the San Diego Math Circle

Education/Credentials
I am entering high school and have received a perfect score and the STAR test 5 times in a row. I also have gotten recognitions in the AMC 10, AIME, Math Counts, and ARML. Additionally, I have won the San Diego Math Olimpiad twice in a row.

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