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

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

In what region do the vast majority of Australians live? A. Southeast B. Southwest C. Northwest D. Northeast

What is the area of the triangle in the diagram?

1. (3 pt) Why doesn't the tribe trust Captain Orlov? A. He is with the Aleuts, and the Aleuts have cheated the tribe in the past. B. He is a whit

List all possible dimensions of a rectangle with an area of 24 square feet

I prima itza trabaja coma guia en/as ruinas de teotihuacan. los indigenas vivian allihace muchos siglos y ella cuenta sus leyendas a los turistas itza y yo fuim

Wich goal was most important to the indian nationalist movement?

Alcohol is a ___________

Geometry help please

How much does a^3-2a exceed a^2+a-6

Math Help? 14 Points Greg tossed a number cube and recorded the results. The table shows the number of times he rolled each number. Based on the table, what is