Please help I don't understand!

Please help I don't understand!

The length of a rectangle is 3 times its width. If the width is increased by 2 cm and the length is increased by 4 cm, its area will be doubled. Find the original

The area of a rectangle is 28 m, and the length of the rectangle is 5 m less than 3 times the width. What are the dimensions?

it has an area of 200 square cm.

The rectangle with the maximum area enclosed by the fence has the length of ___ ft and a width of ___ ft

thearea covered by the picture and the frame together is 48 greater than the area of the picture alone. find the dimensions of the picture

A person wishes to build a rectangular fence that will enclose an area of 317 square feet. The width of the fence is to be 3 feet less than twice it's length. Set up and solve an algebraic equation...

A school is building a rectangular soccer field that has an area of 6000 square yards. The soccer field must be 40 yards longer than its width. Determine algebraically the dimensions of the soccer...

two rectangular prism's have equal heights but unequal bases. Each dimension of the smaller solids base is half each dimension of the larger solids base. The volume of the larger solid is how many...

I have 54 feet of trim. I know twice the width is 3 feet more than the length. How do I figure for my unknown dimensions?

Area question

What dimensions of the corral would enclose the largest possible area? Find Maximum Area as well.

Twenty-five children participate in a game, each producing 1,000 BTU s (British Thermal Units) of heat. The dimensions of the sports field (rink) are 70 feet by 60 feet by 55 feet. How many BTU s...

A rectangular box has dimensions of length=6, width=4, and height=5. What's the measure of the angle formed by a diagonal of the box with the base of the box?

Oil is being transferred from a full rectangular storage container with dimensions 4 meters by 5 meters by 10 meters into a cylindrical container that has a diameter of 6 inches. What's the minimum...

Someone installs 96 feet of electric fencing around a rectangular headquarters. If the headquarters covers 540 square feet, what are its dimensions?

An open box with volume 208cm^3 is to be constructed by taking a piece of cardboard that is 5cm longer than its width and cutting squares of side length 2 cm From each corner.

Milk is poured from a full rectangular container with dimensions 4 inches by 9 inches by 10 inches into a cylindrical container with a diameter of 6 inches. Assuming all the milk is transferred without...

What's the max number of boxes with dimensions 2 inches by 3 inches by 4 inches that could fit in a cube-shaped container that has a volume of 1 cubic foot?

A rectangular shipping crate is in the form of a cube. The width is decreased by 2 m while the length is increased by 2m and the height is increased by 3 m. The new crate has a volume of 168...