Sunday

December 21, 2014

December 21, 2014

Posted by **Sadia** on Monday, May 5, 2014 at 5:35pm.

PLZ help and give a check if possible!

- Mathematics -
**Steve**, Monday, May 5, 2014 at 5:50pmIf the lot's width is w,

w*3w = (w+2*10)(3w+2*10) - w*3w + 1200

w = 40

so, the lot is 40x120

the total area is 60x140 = 8400

the lot's area is 40x120 = 4800

so, the walk's area is 3600

and the lot's area is 1200 more than that

- Mathematics -
**Sadia**, Monday, May 5, 2014 at 5:53pmHow would you solve the equation? Because i need to show full work

- Mathematics -
**Steve**, Monday, May 5, 2014 at 6:27pm(w+2*10)(3w+2*10) = (w+20)(3w+20) so you just solve

3w^2 = (w+20)(3w+20) - 3w^2 + 1200

3w^2 = 3w^2+80w+400 - 3w^2 + 1200

3w^2 - 80w - 1600 = 0

(3w+40)(w-40) = 0

w = 40 or -40/3

If you can't do that, you have some serious reviewing to do.

**Answer this Question**

**Related Questions**

math - a rectangular swimming pool 20 feet long and 10 feet wide,is enclosed by ...

math - a rectangular swimming pool 20 feet long and 10 feet wide,is enclosed by ...

Algaebra - A rectangular swimming pool is 5 feet longer than it is wide. If a ...

Math - 1. A man has 22 feet by 26 feet rectangular lot that he will use for ...

Math - A man built a walk of uniform width around a rectangular pool. If the ...

Math 6 gemoetery - A business owner wants to have a rectangular parking lot ...

Algebra ( benchmark) - The Carlson family is building a house on a lot that is ...

help - A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. ...

geometry - A lot is in the shape of a trapezoid. The sum of the bases is 180 ...

math - A five acre lot is 660 feet long, how many feet wide is it?