A cube of gold with an edge length of 3 inches (in) is melted and reformed into a rectangular prism with a width of 2.5 in and a height of 2in. If the volume is unchanged during melting, what is the length of the prism of gold in inches?
Q. A cube of gold with an edge length of 3 inches (in) is melted and reformed into a rectangular prism with a width of 2.5 in and a height of 2in. If the volume is unchanged during melting, what is the length of the prism of gold in inches?
Calculate volume of original gold cube: Calculate the volume of the original gold cube using the formula for the volume of a cube, V=s3, where s is the side length of the cube.Given side length (s) = 3 inches.V=33=27 cubic inches.
Determine volume of rectangular prism: Determine the volume of the rectangular prism using the formula for the volume of a rectangular prism, V=lwh, where l is the length, w is the width, and h is the height.Since the volume is unchanged during melting, the volume of the rectangular prism is also 27 cubic inches.Given width (w) = 2.5 inches and height (h) = 2 inches.
Solve for length of rectangular prism: Solve for the length l of the rectangular prism using the volume equation, V=lwh.27=l×2.5×2l=2.5×227
Calculate length of rectangular prism: Calculate the length l of the rectangular prism.l=527l=5.4 inches.