how many cubes with a dimension of 3 inches fit in a rectangular prism with dimensions of 2 1/2 feet by 1.25 feet

method in determining the rate of transfer of liquid by siphon.Siphon principle. In the flying-droplet siphon, surface tension pulls the stream of liquid into separate droplets inside of a sealed air-filled chamber, preventing the liquid going down from having contact with the liquid going up, and thereby preventing liquid tensile strength from pulling the liquid up.A basic siphon consists of a tube in a larger container that goes up over a hump (the edge of the container) to empty out into a container at a lower level. ... When liquid is sucked up the tube and over the hump, the force of gravity continues to pull the liquid through the tube.The depth is what makes this a three dimensional figure since there are three dimensions: length, width, and depth! All three of these dimensions are used to find the volume of a rectangular prism.It can also be called a cuboid. A cube and a square prism are both special types of a rectangular prism. ... Cubes are rectangular prisms where all three dimensions (length, width and height) have the same measurement.In this example, the formula for the base's area is width multiplied by length, or 4 multiplied by 6, which equals 24 square inches, and 24 multiplied by 2 results in 48 square inches. Subtract the doubled base area from the prism's surface area.

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9