Monday

July 28, 2014

July 28, 2014

Posted by **Jewel** on Thursday, June 7, 2012 at 9:17pm.

Suppose that the width of a rectangle is three feet shorter than length and that the perimeter of the rectangle is 86 feet.

Set up an equation for the perimeter involving only L, the length of the rectangle.

Solve this linear equation algebraically to find the length of the rectangle. Find the width as well.

Length___,width____

Using the same width from your answer or part b), find a new perimeter when the new length is five less than three times the width.

Explain the work in one or two sentences.

- Algebra -
**Henry**, Friday, June 8, 2012 at 2:54pmb. Length = L Ft.

Width = (L-3) Ft.

P = 2L + 2(L-3).

P = 2L + 2L - 6 = 86.

4L = 86 + 6 = 92

L = 23 Ft.

W = L - 3 = 32 - 3 = 29 Ft.

c. Width = 29 Ft.

Length = (3W-5) = (3*29 - 5 = 82 Ft.

P = 2L + 2W = 2*82 + 2*29 = 222 Ft.

- Algebra -
**Henry**, Friday, June 8, 2012 at 3:06pmb. Correction: W = L-3 = 23 - 3 = 20 Ft.

c. Width = 20 Ft.

Length = (3W-5) = 3*20 - 5 = 55 Ft.

P = 2L + 2W = 2*55 + 2*20 = 150 Ft.

**Related Questions**

Algebra - If the trend for the growth in the median home value continues=d, what...

algebra - If trend for the depreciation of the press continued, what would be ...

calculus - writing an exponential equation The function gives the value of a ...

algebra - The table show the median home prices in Florida what is the equation ...

algebra - _______________________________________ MATH133 Unit 1 Individual ...

math - Solve the following algebraically. Trial and error is not an appropriate ...

math - The table shows the median home prices in Florida. What is the equation ...

College Algebra - What is the answer to: The plane was purchased new in 2006; ...

algebra 1 - Totally lost on this. Any help would be awesome! 1. The function A(t...

college Algebra - 1) Solve the following by factoring: a) Answer: Show your work...