Answer:
It will cost approximately $16.12 to varnish all the wooden planks.
Step-by-step explanation:
We are given the following in the question:
Number of rectangular planks = 12
Dimension of the rectangular wooden plank:
Length = 8 feet
Width = 3 feet
Area covered by I bottle of varnish = 125 Square feet
Cost of 1 bottle of varnish = 3.50 units
Area of 1 rectangular plot =
![A = \text{Length}\times \text{Width}\\A = 8\times 3\\A = 24\text{ square feet}](https://tex.z-dn.net/?f=A%20%3D%20%5Ctext%7BLength%7D%5Ctimes%20%5Ctext%7BWidth%7D%5C%5CA%20%3D%208%5Ctimes%203%5C%5CA%20%3D%2024%5Ctext%7B%20square%20feet%7D)
Total area to be covered by varnish =
![= \text{Area of 1 plank}\times 12\times \text{Top area and bottom area}\\=24\times 12\times 2\\=576](https://tex.z-dn.net/?f=%3D%20%5Ctext%7BArea%20of%201%20plank%7D%5Ctimes%2012%5Ctimes%20%5Ctext%7BTop%20area%20and%20bottom%20area%7D%5C%5C%3D24%5Ctimes%2012%5Ctimes%202%5C%5C%3D576)
Number of varnish bottles required =
![n = \dfrac{\text{Total area}}{\text{Total area covered by 1 varnish bottle}} = \dfrac{576}{125} = 4.608](https://tex.z-dn.net/?f=n%20%3D%20%5Cdfrac%7B%5Ctext%7BTotal%20area%7D%7D%7B%5Ctext%7BTotal%20area%20covered%20by%201%20varnish%20bottle%7D%7D%20%3D%20%5Cdfrac%7B576%7D%7B125%7D%20%3D%204.608)
Cost of varnishing =
![=\text{Cost of 1bottle of varnish}\times \text{Number of varnish bottles}\\=4.608\times 3.50\\=\$16.12](https://tex.z-dn.net/?f=%3D%5Ctext%7BCost%20of%201bottle%20of%20varnish%7D%5Ctimes%20%5Ctext%7BNumber%20of%20varnish%20bottles%7D%5C%5C%3D4.608%5Ctimes%203.50%5C%5C%3D%5C%2416.12)
Thus, it will cost approximately $16.12 to varnish all the wooden planks.
Answer:
4
Step-by-step explanation:
In math, the word difference is the result of subtracting one number from another. It refers to the difference in quantity between two numbers. In math, we get the difference between two numbers by subtracting the subtrahend (the number being subtracted) from the minuend (the number being subtracted from).
Answer:
![f(2)=2](https://tex.z-dn.net/?f=f%282%29%3D2)
Step-by-step explanation:
So we have the function:
![f(x)=10-x^3](https://tex.z-dn.net/?f=f%28x%29%3D10-x%5E3)
And we want to find f(2).
To do so, substitute 2 for x:
![f(2)=10-(2)^3](https://tex.z-dn.net/?f=f%282%29%3D10-%282%29%5E3)
Cube:
![f(2)=10-8](https://tex.z-dn.net/?f=f%282%29%3D10-8)
Subtract:
![f(2)=2](https://tex.z-dn.net/?f=f%282%29%3D2)
And we're done!
Answer:
3x,y is may be the answers of this question