Concept explainers
If the difference in the side lengths of two squares is 10, and the sum of the side lengths is 18, what are the side lengths?
To find: The side lengths of two squares.
Answer to Problem 15P
The side lengths are 14 and 4.
Explanation of Solution
Given information:
The difference in the side lengths of two squares is 10 and the sum of the side lengths is 18.
Calculation:
Let us assume the lights of one side is x and the length of other side is y .
Hence we can write the above statement in equation form as follows:
In order to solve two systems by substitution, we solve one of the equations for one of the
Variables, and plug this into other equation.
As it is given that
Now we substitute
By plugging
Therefore the solution is
Chapter 6 Solutions
High School Math 2012 Common-core Algebra 1 Practice And Problem Solvingworkbook Grade 8/9
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