Wednesday

July 23, 2014

July 23, 2014

Posted by **Jammy** on Tuesday, October 30, 2012 at 9:35pm.

- Geometry -
**Steve**, Tuesday, October 30, 2012 at 9:58pmif the pen has dimensions x by y, with x along the barn, then

x+2y = 115

the area a is thus

a = xy = (115-2y)y

this is a parabola, with maximum at y=115/4

so, x = 115/2

so, a pen 115/4 by 115/2 gives the maximum area

**Related Questions**

math - a farmer has enough fencing to build 40 feet of fence. He wishes to build...

calculus optimization problem - A farmer has 460 feet of fencing with which to ...

math - A farmer will make a rectangular pen with 100 feet of fence using pasrt ...

algebra - Ian wants to build a rectangular pen for his animals. One side of the ...

math - a rectangular pen is to be constructed alongside a barn using 120 feet of...

Math - A rectangular dog pen is to be constructed using a barn wall as one side ...

math - Farmer Hodges has 50 feet of fencing to make a rectangular hog pen ...

calculus - a farmer wants to make a rectangular pen from 200 feet of fencing. he...

math - a farmer wants to build a rectangular pen using a side of a barn and 60ft...

Math - Farmer wants to enclose a rectangular area that is 600 sq. ft. He is ...