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Mathematics 9 Online
OpenStudy (anonymous):

The length of a rectangle is 7 mm longer than its width. Its perimeter is more than 62 mm. Let w equal the width of the rectangle. a. Write an expression for the length in terms of the width. b. Use these expressions to write an inequality based on the given information. c. Solve the inequality, clearly indicating the width of the rectangle. Can someone please simply explain this to me and help me through it?

OpenStudy (anonymous):

|dw:1383765843622:dw|

OpenStudy (anonymous):

So the expression for the length in terms of the width would be w+7? And the inequality (b) would be 2(w) + 2(w+7)? Or...?

OpenStudy (anonymous):

@Easyaspi314

OpenStudy (anonymous):

Yes, length is w + 7. Inequality: 2w + 2(w+7) > 62 Becuase it says in the problem that the perimeter is more than or greater than 62. Now you go ahead and solve that inequality (treat it like an equation, just leave > sign).

OpenStudy (anonymous):

Solve as in find what w means? This is mainly the part I am confused on. I'm not quite sure how to solve it either. Although I've looked over the lesson many times.

OpenStudy (anonymous):

@Easyaspi314

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