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 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

1.1.5 quis reading historical evidence
A grocery store sells one dozen ears of white corn for $2.40. What is the unit rate for one ear of corn?
ways to participate in class and show your presence ​
why do birds fly in the air with wings?
what's the answer to this question
Majka Company was started on January 1, Year 1. During Year 1, the company experienced the following three accounting events: (1) earned cash revenues of $29,50
PLATO: Calc EconomicCountry A is a main producer of agricultural goods. In the past three years, farmers in country A have seen their sales drop because consume
Match the expenses that will vary according to the output and those that won’t. labor cost,travel allowance ,salary of staff, rent, inventory purchases,lease of
For each question, complete the second sentence so that it means the same as the first. Use no more than three words. We look different now, but my brothers and
What is -6 divided by -1.2?