SOLUTION: A rectangle is 9ft longer than its wide, and its area is 360ft2. use quadratic equation to find its length and width
Algebra.Com
Question 374641: A rectangle is 9ft longer than its wide, and its area is 360ft2. use quadratic equation to find its length and width
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
width =x
length = x+9
...
Area = 360 ft^2
x(x+9)=360
x^2+9x=360
x^2+9x-360=0
x^2+24x-15x-360=0
x(x+24)-15(x+24)=0
(x-15)(x+24)=0
So x = 15 . Ignore -24
width = 15 feet
length = 24 feet
...
m.ananth@hotmail.ca
RELATED QUESTIONS
The length of a rectangle is 10cm. longer than its width. Its area is 200 cm2. Which... (answered by josgarithmetic,ikleyn)
a rectangle is 12 meters longer than it is wide. its perimeter is 68 meters. find its... (answered by checkley77)
a rectangle is 12 meters longer than it is wide. its perimeter is 68 meters find its... (answered by mananth)
A rectangle is 12 cm longer than it is wide. Its perimeter is 100 cm. Find its length and (answered by richard1234)
a rectangle is 1om longer than it is wide. its perimeter is 80m. find its length and... (answered by ReadingBoosters)
A rectangle is 12m longer than it is wide. Its perimeter is 68m. Find its length and... (answered by oscargut)
A rectangle is 12m longer than it is wide. Its perimeter is 68m. Find its length and... (answered by tanjo3)
the length of a rectangle is 4ft longer than twice the width. the perimeter of the... (answered by rfer)
A rectangle is 12m longer than it is wide. Its perimeter is 68m. What is its length and... (answered by Fombitz)