The answer is: A. 20.3
The explanation is shown below:
1. By definition, the sum of the length of the strings (The length of the blue segment and the length of the red segment) is equal to the length of the major axis (The black segment).
2. Based on this, you can write the following expression, where is the length of the blue segment:
3. Now, you must solve for , as following:
4. Therefore, the answer is the option A.
There are 12 project managers that are employed by Mr. Wells
<h3>Further explanation</h3>Solving linear equation mean calculating the unknown variable from the equation.
Let the linear equation : y = mx + c
If we draw the above equation on Cartesian Coordinates , it will be a straight line with :
<em>m → gradient of the line</em>
<em>( 0 , c ) → y - intercept</em>
Gradient of the line could also be calculated from two arbitrary points on line ( x₁ , y₁ ) and ( x₂ , y₂ ) with the formula :
If point ( x₁ , y₁ ) is on the line with gradient m , the equation of the line will be :
<em>Let us tackle the problem!</em>
This problem is about Directly Proportional.
<em>There were 8 engineers under every team leader.</em>
<em>There were 5 project managers for every 50 engineers.</em>
Grade: High School
Subject: Mathematics
Chapter: Linear Equations
Keywords: Linear , Equations , 1 , Variable , Line , Gradient , Point
