It takes 5 shovels of sand to make 1 shovel of mortar so how many will it take to have 30 shovels of mortar? You can put this in a proportion.
5/1 = x/30
You don't need to worry about the cement since it's asking for sand.
Cross multiply and you get x·1 and 30·5. So this means you need 150 shovels of sand. x=150 when you multiply 30·5.
Answer:
the answer will be 52221000
Answer:
(E)Nothing can be concluded.
Step-by-step explanation:
Given the function 

![f'(x)=-\dfrac{2}{3}x^{-\frac{1}{3}}\\f'(x)=-\dfrac{2}{3\sqrt[3]{x} }](https://tex.z-dn.net/?f=f%27%28x%29%3D-%5Cdfrac%7B2%7D%7B3%7Dx%5E%7B-%5Cfrac%7B1%7D%7B3%7D%7D%5C%5Cf%27%28x%29%3D-%5Cdfrac%7B2%7D%7B3%5Csqrt%5B3%5D%7Bx%7D%20%7D)
If the derivative is set equal to zero, the function is undefined.
Nothing can be concluded since
and no such c in (-1,1) exists such that 
<u>THEOREM</u>
Rolle's theorem states that any real-valued differentiable function that attains equal values at two distinct points must have at least one stationary point somewhere between them—that is, a point where the first derivative is zero.
Tangent (R) = opposite / adjacent = 5 / 12 =
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0.416666
arc tangent (.416666) = angle R = 22.62 Degrees
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