advertisement

A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Algebra 1 Ch.7 Notes Page 37 P37 7­2 Solving Systems Using Substitution Sep 2­8:31 AM 1 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Using Substitution Trying to find an x and y that works in both equations Solve for x and y y = ­4x + 8 y = x ­ 7 Jan 23­8:15 AM 2 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Practice 7x ­ y = 15 y = 2x Feb 5­8:43 AM 3 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Substitution and Distribution Solve using Substitution 3y + 2x = 4 ­6x + y = ­7 Feb 5­8:43 AM 4 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Practice 7x ­ 8y = 112 y = ­2x + 9 .5x + .25y = 36 y + 18 = 16x Feb 5­8:48 AM 5 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 Word Problem Your school is planning to bring 193 people to a competition at another school. There are eight drivers available and two types of vehicles, school buses and minivans. The school buses seat 51 people each, and the minivans seat 8 people each. How many buses and minivans will be needed? Let b = buses Let m = minivans Feb 5­8:43 AM 6 A17­2SolvingSystemsSubstitution.notebook October 15, 2014 HW #42 7­2 P384 #1­13,18,24,25 Please put your name and class period at the top of the homework. Also include the homework number. Nov 10­3:06 PM 7