radomes.openskiesproject.org
Emmitt13 Emmitt13
  • 15-02-2017
  • Mathematics
Answered

The length of a rectangular floor is 2 feet more than its width. The area of the floor is 168 square feet. Kim wants to use a rug in the middle of the room and leave a 2-foot border of the floor visible on all sides. What should the width (the shorter side) of the rug be?

Verified Answer :

Anonymous Anonymous
  • 15-02-2017

let width of the floor be x feet, them area is
x(x+2)  = 168
x^2 + 2x - 168 = 0
(x - 12)(x + 14) - 0
so x = 12
the floor is 12 ft by 10 ft

the width of the rug should be 10 - 2(2) = 6 feet


Answer Link

Related Questions

To drive to work Dave has to drive 20 miles east and then 15 miles north If there were a direct road going northeast how many miles would he have to drive
Where does the Krebs Cycle occur in a prokaryotic cell
tortilla potato ranch baroque tornado which words have Spanish background
Which one of the following numbers is a multiple of 8
What is a certification school
What is the political party of the president now
Examples of cliche in true grit
Pliny governor of Asia Minor punished all Christians who were brought before him by feeding them to the lions except for Roman citizens whom he freed if they di
Why lava would seem to be glitering
In American society romantic love is considered the main reason for people to marry On the other hand in some societies romantic love is considered a form of ob