Sunday

December 21, 2014

December 21, 2014

Posted by **MARIAH** on Tuesday, October 26, 2010 at 6:18pm.

Marie has a rectangular board 18 inches by 23 inches around which she wants to put a uniform border of shells. If she has enough shells for a border whose area is 282 square inches, determine the width of the border. (the border has x's as the width and length)

- MATH HELP NOW -
**MathMate**, Tuesday, October 26, 2010 at 6:52pmSo the board AND the border have an area of

A2=(18+x)(23+x)

The board alone is

A1=18*23

A2-A1=282

Solve for x.

**Answer this Question**

**Related Questions**

math - Sophina bought 3 yards of trim to put around a rectangular scarf. She ...

Algebra 2 - Can you double check my answer The lengths of the sides of a ...

math - a rectangular container with dimensions 10 inches by 15 inches by 20 ...

chemistry - please explain the dimensional analysis, and atomic structure? The ...

math - Use the five steps for problem solving to answer the following question. ...

Math - You are using glass tiles to make a picture frame for a square photograph...

Math - A rectangular sandbox has a length of 60 inches, a width of 40 inches, ...

science - whats my height in meters? my height is 5'3" 63 inches x 2.54 cm/inch...

math - Myra's bulletin board has a width of 60 inches. When she originally ...

math - I have a table with this info. plant growth: Week 1 - 1 inch, week2 -4 ...