# Algebra

The length of a rectangle is twice the width. If the area is 64^2cm, find the dimensions of the rectangle. Use the table or a calculator if necessary. Round to the nearest hundredths.

I do not know how to set the problem up. Thank you for your help.

1. 👍 0
2. 👎 0
3. 👁 39
1. width ----- x
length ---- 2x

x(2x) = 64
2x^2 = 64
x^2 = 32
x = √32 = .....

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Maths

The area of a rectangle of width ycm is 140cm^2. If the width is reduced by 2cm, the length increases by 3cm, and the area decreases to 136cm^2 to form an equation that enables you to determine the value of Y and hence, find the

asked by Carter on May 12, 2016
2. ### Math

The area of a rectangle is given by the expression 3x^2+7x-40. A. What is the length of the rectangle if its width is x+5? B. If x=2cm, find the length, width and area of the rectangle?

asked by Bella on July 8, 2018
3. ### trigonometry

the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.

asked by lesley on October 10, 2011
4. ### trigonometry

the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.

asked by lesley on October 10, 2011
5. ### math117

The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t

asked by student on July 2, 2007
1. ### Math

The area of a rectangle is shown below The area of the rectangle is 56 Which of the following are possible values for the length and width of the rectangle? A.length=6cm and width=9cm B.length=7cm and width=8cm C.length=14cm and

asked by Jerald on March 6, 2013
2. ### coordinate algebra

The area of a rectangle is found by multiplying the length by the width: A = lw. A certain rectangle has an area of x2 + 7x + 12. Factor the trinomial to find the length and width of the rectangle. In the form of a paragraph,

asked by chelsea on December 2, 2014
3. ### basic geometric

10. a rectangle has width the same as a side of a square whose perimeter is 20m. the length of the rectangle is 9m. find the perimeter of this rectangle. 34. The width of a rectangular picture is one-half the length. The perimeter

asked by vero on March 12, 2007
4. ### math

a rectangle is twice as long as it is wide. if both of its dimensions are increased by 4m, its area is increased by 88m^2 find the dimensions of the original rectangle Original rectangle = w for width and 2w for length. Area = w x

asked by samantha on November 29, 2006