To find out how many 1-inch cubes can fit in a rectangular box, you'll need to calculate the volume of the box and divide it by the volume of one 1-inch cube.
First, calculate the volume of the rectangular box using the formula Volume = Length x Width x Height. In this case, the length is 10 inches, the width is 6 inches, and the height is 3 inches.
Volume = 10 inches x 6 inches x 3 inches
Volume = 180 cubic inches
Now, find the volume of one 1-inch cube, which is simply 1 cubic inch.
To determine how many 1-inch cubes can fit in the rectangular box, divide the volume of the box by the volume of one 1-inch cube:
Number of 1-inch cubes = Volume of the box / Volume of one 1-inch cube
Number of 1-inch cubes = 180 cubic inches / 1 cubic inch
Number of 1-inch cubes = 180
Therefore, you can fit a total of 180 1-inch cubes in a rectangular box that is 10 by 6 by 3 inches.