# math

posted by greg

a rectangular parking lot has a length that is 10 yards greater than the width. the area of the parking lot is 200 square yards.find the length and the width

1. Shaniqua

the equation you use is:
200=w(10+w)
200=10w+w^2
w^2+10w-200 = 0
(w+20)(w-10)= 0
w = -20 or 10
it has to be positive so the answer is 10.
The width is 10 yards and the length is 20 yards

## Similar Questions

1. ### math

a rectangular parking lot is 110 yards long and 45 yard wide it costs about \$.60 to pave each square foot of the parking lot with asphalt.about how much will it cost to pave the parking lot?
2. ### Algebra

The length of a rectangular parking lot is 4 times its width w. The perimeter of the parking lot is 450 feet. Write an equation for the perimeter. Thanks. (:
3. ### algebra

the length of a rectangular parking lot is 3 meters less than twice its width, and the perimeter is 408 meters, find the length of the parking lot.
4. ### MATH

quantity price 50 \$1.25 100 \$2.25 200 \$4.20 300 \$11.25 Which quantity has the best unit price?
5. ### algebra

parking lot had a length that is 7 yards greater than thre width. the area of the lot is 450 square yards. what is the length and width?
6. ### geometry

there is a rectangular parking lot with a length of 2x and a width of x what is the ratio of the perimeter of the parking lot to the parking lot, in terms of x?
7. ### Math

A rectangular parking lot has an area of 2/3 of a square kilometer. The width is 1/2 of a kilometer. What is the length, in kilometers, of the parking lot?
8. ### math

A rectangular parking lot has an area of 2/3 of a square kilometer. the width is 1/2 of a kilometer. What is the length, in kilometers, of the parking lot?
9. ### math

A rectangular parking has a perimeter of 28 units. The length is six less than double the width. What is the length of the parking lot?
10. ### Math

A rectangular parking lot has an area of 7/8 of a square kilometer. The length is 1/4 kilometer. What is the width, in kilometer, of the parking lot?

More Similar Questions