# Ian

Member Since February 8, 2009

Retired chap. Enjoys helping others with maths and physics.

## Recent Activity by Ian

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1.If b represents a fixed cost, what value would represent b ? b = \$300 2. Find the cost equation for the tile. Write your answer in the form C = mx + b. C = 6x + 300 (in dollars) Regards ...

### Answered:Math help?? Can you help me with these few math ...

I have just noticed that the first posted reply was based on "simple interest" but I think the n in the formula was a power as this is compound interest. Regards - Ian

### Answered:Math help?? Can you help me with these few math ...

As it says "try these on your own" your teacher is hoping that when exams come you will remember the method by doing a few examples now. I will do the first one so that you get the idea about how ...

### Answered:Integrated algebra and mathematical hard cover ...

Hi there, if you can write a note to the maths teacher asking for the exact words in the title, the author and best of all the ISBN number then you can order it through your local bookshop or ...

First, check that you copied the question correctly. You did not post either of these problems :- x^2 + 7x + 10 = 0 = (x + 5)(x + 2) = 0, yielding x = -5 or -2 x^2 - 7x + 10 = 0 = (x - 5)(x - 2) = ...

Congratulations for not just skipping the page. This shows you are thorough and trying hard. Another option might be to borrow the book from friend/teacher/library and read to see if useful. If ...

### Answered:Automotive math problem: Before my tune-up, my ...

Slightly different approach, same answer After tuneup 1 mile cost 3/22.5 = 6/45 of a dollar Before tuneup 1 mile cost 3/13.5 = 6/27 = 2/9 = 10/45 of a dollar 1 mile now saves 4/45 of a dollar So ...

### Answered:How can 0.6 be written

This is my way of answering your WHY. As you know, 9 x 10 + 8 more is represented by the number 98. So the position of each digit in a number is important, and tells you whether we are talking ...

None Trick question because even means contains factor of 2 so not prime

The sign that is an exclamation mark when used in writing has a completely different meaning in maths. The sign ! in maths is called factorial and it tells you to multiply together all the positive ...

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## Compliments

OronD says:
"Ian You are doing a great job in Yedda. I see many of your math answers and you are always clear and accurate. Best personal regards, OronD. "
MackTheKnife says:
"I really like your answers. They are very clear and well thought out. "