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

1. The beaches are clean and uncrowded. The surrounding countryside is lush and soothing to winter-weary eyes. Furthermore, being able to take sailing and
Which is true of ultraviolet rays? They help your body produce vitamin D.They are visible to the naked eye.They provide the energy that makes your morning toast
4x squared + 7x +2=0 use quadratic formula
How can an author convey meaning through structure of text? Please give an example and explain
Explain how to do this math problem all the way threw 6times2 and 7/10
WHAT IS 5X SOMETHING THAT EQUALS 120 BESIDES 24 X 5? SOMEONE PLEASE
Was mercy otis warren a federalist
Why was the role of NATO questioned during the 1990s? A. It seemed unecessary after the fall of the Soviet Union. B. NATO membership had become too expensive. C
how many times does 15 go into 123
whatkind of energy travels through water better than through air?