Posted by **Jeff** on Tuesday, October 13, 2009 at 6:24pm.

the lenght of a rectangle is fixed at 19 cm. What width will make perimeter greater than 70 cm?

- Algebra -
**jim**, Tuesday, October 13, 2009 at 8:31pm
The perimeter is two lengths + two widths, and that has to be more than 70.

2L + 2W > 70

We know that the length is 19, so 2L = 38.

2W + 38 > 70

2W > 70 - 38

Now pick a width that makes that true. There are lots of them to choose from: a million will do. :-)

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