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

Another term for a risky mortgage is a?
Write a point-slope equation for the line that passes through the point (-1, 4) and is parallel to the line given by y = 3x -1.
An hourly employee needs to fill out her time sheet. What information must the employee enter in the chart before getting paid? total hours worked day of the we
what are 3 differences about the middle, new engalnd, and southern colonies?
recommend ways in which a grade 11 learner may use goals to plan for his studies​
Can someone please help me with problem #18 of The Rational Root Theorem Worksheet?I found the possible rational roots but I need the work shown for it. I also
name the continent in which Amazon Basin is located a. south Africa b. south America c.north Africa d. none of these
The substances of the mantle are mostly in the............. state. ​
kiyan calculates that he spends 15% of his day in science class if he spends 45 minutes in science, how many does he spend in school
Friday, 23 Feb 2024 Write down a letter to to arrange freindly another class of To Letter your class teacher, request her football match of your class with scho