Register
The length of a rectangular field is 20 less than its width. The area of the field is 12,00 square feet. What is the width of the field?
192k views
4 votes
The length of a rectangular field is 20 less than its width. The area of the field is 12,00 square feet. What is the width of the field?

User LifeQuery
by
7.4k points

1 Answer

5 votes
x(x-20)=12000
x^2 - 20x = 12000
x^2 - 20x - 12000 = 0
(x - 120)(x + 100) = 0

x = -100, 120

so the width is 120 ft
User Bercove
by
7.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.6m questions

11.3m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!