9.2 Solving Linear Systems by Substitution

# 9.2 Solving Linear Systems by Substitution

## 9.2 Solving Linear Systems by Substitution

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##### Presentation Transcript

1. 9.2 Solving Linear Systems by Substitution Warm-up: State whether the given ordered pair is a solution to the system. 1. 2. 3.

2. 3x + y = 5 2x - y = 10

3. 2x + 6y = 15 x = 2y

4. x + 2y = 4 -x + y = -7

5. 3x - y = 5 2x + y = 0

6. -2a + b = 7  2m + 5n = 14 3a + b = -8 2m - 3n = 6

7. A quilt maker sews both large and  small quilts. A large quilt requires 8  yards of fabric and a small quilt  requires 3 yards. How many of each  size can she make if she uses a total  of 90 yards of fabric to make 15  quilts?

8. Tickets for the school play are \$5 in  advance and \$8 at the door. 55 tickets  were sold with sales totaling \$320.  How many tickets were sold in  advance and how many were sold at  the door?

9. Homework Pg. 419 Written Exercises #1 - 17 odd Challenge Problems: #2 - 12 even