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Expert: Robi Bhattacharjee - 9/17/2008


Question
For what integer value of x is 3x+5>11 and x-3<1?

Answer
Hello Em,

I'm terribly sorry for answering this late. I've just had a lot of work lately and haven't really gotten the time to get to answering questions.

For this question, 3x + 5 > 11, you would just solve that like you would an equation, so

3x > 6

x > 2.

now x-3 < 1. So we solve this the same way.

x < 4 (by adding three to both sides.)

Now x > 2 and x < 4

so 2<x<4.

I hope this helped,

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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