A company made a storage container with sheet steel walls. The container was in the shape of a rectangular prism, as shown below. Suppose the total cost of the sheet steel was $ 4392 . How much did the sheet steel cost per square meter?

The missing figure is attached

The sheet steel costed $22.41 per square meter

Step-by-step explanation:

To find the cost per square units find the lateral area (they will made the walls only) of the rectangular prism and divide the cost of the steel sheet by it

The formula of the lateral area of the rectangular prism is:

LA = perimeter of base × height

∵ The length of the base is 9 m

∵ The width of the base is 5 m

∵ The height of the prism is 7 m

- Find the perimeter of the base

∵ Perimeter of base = 2(length + width)

- Substitute the values of the length and the width

∴ Perimeter of base = 2(9 + 5) = 28 m

Now use the formula of the lateral area to get it

∵ LA = 28 × 7

∴ LA = 196 m²

Let us find the cost per square meter

∵ The total cost of the sheet steel was $4392

∵ The lateral area of the container is 196 m²

- Divide the cost by the lateral area

∴ The unit cost = 4392 ÷ 196

∴ The unit cost = 22.41 dollars to the nearest cent

The sheet steel costed $22.41 per square meter

120

Step-by-step explanation:

2 trays : 12 ice cubes

20 trays: X ice cubes

2/12 = 20/X

X = 20×12/2 = 120

Alternately,

If 2 trays contain 12 ice cubes, each tray contains 6 ice cubes

Hence 20 trays would contain 20×6 = 120 ice cubes