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Q: How do you solve - A rectangle has a width of 2y plus 3 and height of y-7. Find the perimeter of the rectangle?

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You are describing a cuboid, not a rectangle. A rectangle has only two diminutions, length and width.

Write two simultaneous equations and solve them. One for the perimeter, one for the area.

You must first calculate the width, using the formula for the area of a rectangle (plug in the numbers you know into the formula, and solve for width). Once you know this, you can plug in the numbers in the formula for a rectangle's perimeter.

area = width x height = 30 square feet ( not feet) 5 x height = 30 height = 6 feet perimeter = 2 width + 2 height = 10 + 12 = 22 feet

You divide the perimeter by the width and you get the lenght

Related questions

Write an equation for the perimeter, and solve it. Remember that the perimeter is the sum of all four sides.

For a rectangle, it is 2(l + w) l = length w = width

There is no "height" of a rectangle, unless it's a rectangular prism. Do you mean the length? If you have the area of the rectangle, the equation should be:A= L x WPlug in the area and the length and solve for the width, or plug in the area the width of the rectangle, and solve for the length.

Perimeter is Length + width x 2 or Length + length + width + width. This is perimeter for any shape including a rectangle. Perimeter of a rectangle is all sides added together for a rectangle.

You are describing a cuboid, not a rectangle. A rectangle has only two diminutions, length and width.

If the length of a rectangle is twice its width and it has a perimeter of 48, then the rectangle is 16 in length and 8 in width.

You can't if you don't what the height and width is.

The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.

Write two simultaneous equations and solve them. One for the perimeter, one for the area.

the length of a rectangle is 5 more then the width. Find the perimeter and the area of the rectangle

You must first calculate the width, using the formula for the area of a rectangle (plug in the numbers you know into the formula, and solve for width). Once you know this, you can plug in the numbers in the formula for a rectangle's perimeter.

area = width x height = 30 square feet ( not feet) 5 x height = 30 height = 6 feet perimeter = 2 width + 2 height = 10 + 12 = 22 feet

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