Answer:
x = 800
Step-by-step explanation:
0.0525 × x = 42
x = 800
What is Pendas in this sentence did you mean PEMDAS
Answer:
base: 30 cm
height: 15cm
Step-by-step explanation:
Let 'b' be the length of the side of the base, and 'h' the height of the box. The volume is given by:

The total area of material used is:

Using both equations to solve for 'b':

The value of 'b' for which the derivate of the area function (A) equals zero, is the value that yields the minimum area.
If b=30, the height 'h' is:

Answer:
8.008
8.018
8.088
8.808
8.88
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<h3>
Answer: 5/7</h3>
Explanation:
I'm assuming the equation is
which is the same as writing y = (5/7)x.
If so, then the constant of proportionality is the fraction out front: The value 5/7 is the coefficient of the term (5/7)x.
All direct proportion equations are of the form y = kx, where k is the constant of proportionality. Another example would be y = 12x and this time k = 12.