For this case, the first thing we must do is define variables.
We have then:
n: number of journals.
We now write the equation for the profits.
We have then:
P (n) = (6-1.50) n - 600
Rewriting:
P (n) = 4.50n - 600
Answer:
An equation that represents the profit function of the newsstand is:
P (n) = 4.50n - 600
Given:
Perimeter of a rectangle = 24
Width of the rectangle = x
Length of the rectangle = y
To find:
The length of the rectangle in terms of x and possible values of x and y.
Solution:
The perimeter of a rectangle is:

Where, l is the length and w is the width.
Putting
, we get

Divide both sides by 2.


The possible values of x are 1, 2, 3, 4, 6, 7, 8, 9, 10, 11 and the respective possible y values are 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1.
Therefore, the value of y in terms of x is
.
<em>Greetings from Brasil...</em>
According to the statement of the question, we can write the following equation:
<h2>3X/4 + 6 = X - 4</h2>
solving this equation
3X/4 + 6 = X - 4
3X/4 - X = - 4 - 6
4X - 3X = 40
<h2>X = 40</h2>
<em>refer to attached</em>
10) 655785 cm 11) 706 cm 12) 1962 cm