poohbear2003z poohbear2003z
  • 03-10-2017
  • Mathematics
contestada

A rectangle with an area of 120 in 2 has a length 8 inches longer than two times its width. What is the width of the rectangle?

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 03-10-2017

width = x

length = 2x+8

area = l x w

x(2x+8)=120

2x^2+8x−120=0

x^2+4−60=0

(x+10)(x−6)=0

x=−10 and x=6

 width has to be a positive number

Width = 6 inches.

Answer Link

Otras preguntas

Why is RNA necessary to act as messenger?
Nadine can send or receive a text message for 15 cents or get an unlimited number for 5 dollars. Write and solve an inequality to find how many messages she can
Can u paraphrase the quote ”let things take their course”
Was the Gold Rush a good or bad thing for the United States?
A 1 digit number and a 3 digit number have a sum of 205.  The same two number have a difference of 195, a product of 1,000 and a quotient of 40.  What are the t
.is a pot holder a conductor or a insulator
.is a pot holder a conductor or a insulator
How does transpiration play a  role in the water cycle ?
Can u paraphrase the quote ”let things take their course”
Rewrite the function c(x) =9(x+3) using the distributive property