Answer:
this isnt the answer but it helps solve the equation so here is a little explanation
Step-by-step explanation:
Cost Equation
-Is a mathematical equation for a straight line, to predict total cost.
-Total cost = total variable cost + total fixed cost or Y = vx + f
-Y = total mixed cost
v = variable cost per unit of activity
x = volume of activity
f = fixed cost over a given period of time
Answer:
108 books.
Step-by-step explanation:
Let the number of magazines = m
Let the number of books = b
<u>Given the following data;</u>
Total number of m & b = 162
<em>Translating the word problem into an algebraic equation, we have;</em>
......equation 1
......equation 2
<em>Substituting equation "1" into equation "2" we have;</em>
m = 54
Now to find the number of books;

Substituting the value of "m" into the equation, we have;
<em>b = 108</em>
<em>Therefore, the total number of books in the library is 108 books. </em>

Explanation

Step 1
multiplicate by the conjugate

notice that


I hope this helsp you
Answer:

Step-by-step explanation:
Given :
Length of the rectangle (l)=15m
Width of the rectangle (w)= 6 m
Area of the rectangle can be calculated as :

Now,
Side of square (s)=12 m
Area of the square can be find:

Anser is B). Subtract smallest number