To explain how to solve a system of equations using tables to find the number of
Let
Model the given situation mathematically using a system of linear equations:
Solve the system by using the method of tables:
Then, it follows that, the number of
Given:
Given that Amy ordered a total of
The cost of
Calculation:
Model the given situation mathematically using a system of linear equations:
Suppose that
Since Amy ordered a total of
Now, since the cost of a
Likewise, the total cost of
Then, the total cost of the order of photographs:
The total cost of the order is given to be
Then, it follows that:
Then, a system of linear equations modelling the given situation is found:
Solve the system of equations using tables:
Consider the system of equations
Consider the first equation
Isolate
Now, consider the second equation
Then, the system of equation reduces to:
Now, use the tabular approach to solve the system of equations by listing
Observe that the
Substitute
Thus, the value of
That is, the number of
Conclusion:
Let
Model the given situation mathematically using a system of linear equations:
Solve the system by using the method of tables:
Then, it follows that, the number of
Chapter 3 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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