February 21, 2017

Homework Help: Algebra--Help needed!

Posted by Celina on Tuesday, November 4, 2008 at 5:17pm.

Does anyone at least slightly understand direct and inverse variation? I get the basic idea, but I'm still a little confused, especially with inverse variation.

What I'm having more trouble with is conversion using direct and inverse variation. Today, my teacher kept talking and talking and wouldn't explain things very well, and there was no time for questions. Does anyone know the answer to this question? For any of my questions, please tell me the answer and walk me through it, too, because that is exactly what my teacher didn't do.

#1: Given that 1 inch is 2.54 centimeters and 1 ounce is 28.35 grams, convert 16.2 inĀ²ozˉˡ (that is to the power of negative 1) to centimeters and grams.

I think we did that one in class, but I'm kind of confused about how to get the answer.

#2: A molecule is traveling at a speed of 400 meters per second. What is its speed in miles per hour? Given: 30 centimeters = 1 foot, 3600 seconds = 1 hour.

Thank you so much! I appreciate any help, even if you can only answer one!

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