brooke020500 brooke020500

02-05-2017
Mathematics

contestada

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?

Respuesta :

jwright24 jwright24

02-05-2017

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

Answer Link

Otras preguntas

Choose all that apply. As glaciers melted at the end of the last Ice Age: 1.worldwide sea level increased 2.river plains drowned 3.estuaries formed

Which of the following best explains the role of deep sea coral reefs in the environment? a. They are responsible for fouling fishing lines. b. They are a quick

How do their methods of changing the constitution vary

15% of the students in Mrs. Madison’s math classes have an ‘A’. If 18 students have an ‘A’, how many students are in Mrs. Madison’s math classes? [Type your ans

Evaluate the impact of microscope technology on the modern study of cells

Which statement best describes the relationship of photosynthesis and energy? The process of photosynthesis is energy-storing because the process converts light

.In DNA, the total number of guanine bases will be equal to the total number ofcytosine basesguanine basesthymine basesdeoxyribose sugars

Mi abuelo no puede oir bien. Tenemos que

How to solve 3/2 = 9/10k (in fraction form). Please show work

How long does Robinson Crusoe say he lived in fear after seeing the footprint in the sand?