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 it important for public relations and financial reasons to be sure all entries are posted to monthly statements correctly?
!! Mum spent 3/5 of her money and put 1/8 of the remainder in the bank. If she had $750 left, how much did she start with?
A ski resort claims that there is a 75% chance of snow on any given day in january and that snowfall happens independently from one day to the next. a family pl
If I use the command right(90), which way will Tracy turn? If correct I mark brainlist
A ray of monochromatic light (f = 5.09 × 10^14 hertz) in air is incident at an angle of 55°
How to adjust temperature on electric water heater.
someone answer this ASAP!!!!!
ANSWER QUICK PLSSSS AND MAKE SURE YOUR ANSWER IS CORRECT!! Which of the following algebraic expressions can be used to express the statement "three less than z
please help grades go in in like 3 or 2 hours and I need help please ​
simplify the expression 4x(x + 1) (3x − 8) (x + 4)