A machine can fill a box with twenty pencils in 30 seconds. How many boxes can the machine fill in 2 hours?
1 answer:
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The missing figure is attached
Answer:
The sheet steel costed $22.41 per square meter
Step-by-step explanation:
<em>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</em>
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
Answer:
All numbers greater than 5, i.e.,
.
Step-by-step explanation:
The given inequality is
Isolate variable terms on one side to find the solution.
Subtract 50x from both sides.
Divide both sides by 30.
It means, all the numbers which are greater than 5, are the solutions of the given inequality and 5 is not included in the solution set.