3 2 Using Algebraic Methods to Solve Systems

3 -2 Using Algebraic Methods to Solve Systems LEARNING GOALS FOR LESSON 3. 2. 1 3. 2. 2 3. 2. 3 3. 2. 4 Solve a system using the substitution method Use elimination to solve a system Classify the number of solutions Model and solve real-world problems with a system of equations Use substitution to solve the system of equations. LG 3. 2. 1

3 -2 Using Algebraic Methods to Solve Systems Use elimination to solve the system of equations. LG 3. 2. 2

3 -2 Using Algebraic Methods to Solve Systems LG 3. 2. 3 Classify the system and determine the number of solutions. You can use any method you choose to solve story problems, but you must always show the equations you used. LG 3. 2. 4 A. A veterinarian needs 60 pounds of dog food that is 15% protein. He will combine a beef mix that is 18% protein with a bacon mix that is 9% protein. How many pounds of each does he need to make the 15% protein mixture? B. City Park Golf Course charges $20 to rent golf clubs plus $55 per hour for golf cart rental. Sea Vista Golf Course charges $35 to rent clubs plus $45 per hour to rent a cart. For what number of hours is the cost of renting clubs and a cart the same for each course?