Question
A rectangle is 7 feet longer than it is wide. If its area is 120 square feet, find its length and width. Represent this situation as an equation and solve.
Answers
L=7+w
A=LW
120=(7+w)w
120=7w+w^2
w^2+7w-120=0
(w+15)(w-8)=0
w=-15 or w=8. Length cannot be negative.
Width is 8 ft. Length is 15 ft.
A=LW
120=(7+w)w
120=7w+w^2
w^2+7w-120=0
(w+15)(w-8)=0
w=-15 or w=8. Length cannot be negative.
Width is 8 ft. Length is 15 ft.
A rectangle has an area of 120 square feet and a width of 8 feet what is the length of the rectangle
Related Questions
a house has two rooms of equal area. one room is square and the other room a rectangle, four feet na...
A rectangle pen for a pet is 5 feet longer than it is wide. Give possible values for the width W of...
The leng of the smaller rectangle is 1 inch less than twice its wide. both the dimensions of the lar...
A flower bed has the shape of a rectangle 15 feet long and 12 feet wide. What is the area in square...