Step-by-step explanation:
5x 3 1/2 = 3 x 5 1/2 is false
Answer:
Step-by-step explanation:
Given : Expression ![x=25.36+0.45(25.36)](https://tex.z-dn.net/?f=x%3D25.36%2B0.45%2825.36%29)
To find : Solve the expression ?
Solution :
Step 1 - Write the expression,
![x=1(25.36)+0.45(25.36)](https://tex.z-dn.net/?f=x%3D1%2825.36%29%2B0.45%2825.36%29)
Step 2 - Apply distributive, ![ab+ac=a(b+c)](https://tex.z-dn.net/?f=ab%2Bac%3Da%28b%2Bc%29)
Here, a=25.36, b=1, c=0.45
![x=25.36(1+0.45)](https://tex.z-dn.net/?f=x%3D25.36%281%2B0.45%29)
Step 3 - Solve the expression,
![x=25.36\times 1.45](https://tex.z-dn.net/?f=x%3D25.36%5Ctimes%201.45)
![x=36.772](https://tex.z-dn.net/?f=x%3D36.772)
Therefore, ![x=36.772](https://tex.z-dn.net/?f=x%3D36.772)
If a = 6l^2 is the total area of the surface of a cube with sides l length and A = 6 (2l)^2 is that area with 2l sides, then we take the ratio A/a = 6 (2l)^2/(6 l^2) = (2l)^2/l^2 = 4l^2/l^2 = 4. So that A = 4a. And that explicitly shows that the area A with 2l for sides is 4 X a, where a is the area when l is the side length.
<span>Using ratios to compare values of the same thing is the smart way to solve this kind of problem, because many of the values, like the 6 in both, cancel out. In fact, because we found that A/a = (2l/l)^2 we say in general that the area of a cube varies with the square of the length of its side.
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First, let's simplify by multiplying what needs to be multiplied:
5x - 12y + 8x + 4 + 8
Now we add and subtract where needed:
13x + 12 - 12y
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