Answer:
B im pretty sure
Step-by-step explanation:
Answer:
<u>Yes, it is 30</u>
Step-by-step explanation:
And yes, you thought it through correctly. 6(X-Y) = 6*5
6(X-Y) = <u>30</u>
The <em>total surface</em> area of the three figures are 702 square feet.
<h3>How to estimate the amount of metal needed to produce a given amount of figures</h3>
According to this problem, we are required to determine the amount of metal needed to build three pieces with the dimensions presented in the figure.
In this case, we need to estimate the <em>total</em> surface area (
), in square feet, required for the production of the three pieces, that is, the product of the number of pieces (<em>n</em>), no unit, and the surface area of each piece (<em>A</em>).
Now we proceed to calculate the total surface area:
![A_{T} = n\cdot A](https://tex.z-dn.net/?f=A_%7BT%7D%20%3D%20n%5Ccdot%20A)
![A_{T} = 3\cdot \left[(5\,ft)\cdot (8\,ft) + (2\,ft)\cdot (8\,ft)+(8\,ft)\cdot (7\,ft)+(3\,ft)\cdot (8\,ft) \\](https://tex.z-dn.net/?f=A_%7BT%7D%20%3D%203%5Ccdot%20%5Cleft%5B%285%5C%2Cft%29%5Ccdot%20%288%5C%2Cft%29%20%2B%20%282%5C%2Cft%29%5Ccdot%20%288%5C%2Cft%29%2B%288%5C%2Cft%29%5Ccdot%20%287%5C%2Cft%29%2B%283%5C%2Cft%29%5Ccdot%20%288%5C%2Cft%29%20%5C%5C)
![+(5\,ft)\cdot (8\,ft)+2\cdot (3\,ft)\cdot (5\,ft) + 2\cdot (4\,ft)\cdot (2\,ft) + (3\,ft)\cdot (4\,ft) ]](https://tex.z-dn.net/?f=%2B%285%5C%2Cft%29%5Ccdot%20%288%5C%2Cft%29%2B2%5Ccdot%20%283%5C%2Cft%29%5Ccdot%20%285%5C%2Cft%29%20%2B%202%5Ccdot%20%284%5C%2Cft%29%5Ccdot%20%282%5C%2Cft%29%20%2B%20%283%5C%2Cft%29%5Ccdot%20%284%5C%2Cft%29%20%5D)
![A_{T} = 702\,ft^{2}](https://tex.z-dn.net/?f=A_%7BT%7D%20%3D%20702%5C%2Cft%5E%7B2%7D)
The <em>total surface</em> area of the three figures are 702 square feet. ![\blacksquare](https://tex.z-dn.net/?f=%5Cblacksquare)
To learn more on surface areas, we kindly invite to check this verified question: brainly.com/question/2835293
Answer:
28
Step-by-step explanation:
Add them and then divide by the number of numbers given
In effect, there is a proportional relationship between the mass and the volume of the pieces of metal. The equation of the line that adapts to the given data is given by: y = 0.1174x. Therefore the proportionality constant is 0.1174