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Mathematics 52 Online
OpenStudy (anonymous):

How do I do this? Which inequality models this problem? The length of a rectangle is four times its width. If the perimeter is at most 130 centimeters, what is the greatest possible value for the width? A. 2w + 2 • (4w) < 130 B. 2w + 2 • (4w) > 130 C. 2w + 2 • (4w) ≤ 130 D. 2w + 2 • (4w) ≥ 130

OpenStudy (anonymous):

@Ziegenbein @Destinymasha @kayleenxcx @Yungwisdom2000

OpenStudy (anonymous):

did you still need help?

OpenStudy (anonymous):

Yes please. :)

OpenStudy (anonymous):

@kayleenxcx

OpenStudy (anonymous):

Ok so you can start by easily eliminating two, just by the way the question is worded. When working with inequalities you want to look for words that tell you what inequality sign you need. Do you know what words those are in the question?

OpenStudy (anonymous):

Eliminate C and D?

OpenStudy (anonymous):

Not quite. Because the words that tell you what equality symbol you're looking for is "at most" is it no greater than but could also be equal to.

OpenStudy (anonymous):

Oh, so it's going to be A and B you eliminate?

OpenStudy (anonymous):

Exactly. So, which symbol means less than or equal to? Then you've got an answer

OpenStudy (anonymous):

@kayleenxcx

OpenStudy (anonymous):

D?

OpenStudy (anonymous):

yep !

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