systems of equations

Question

Michelle bought 2 teddy bears and 3 flower vases for $27 in a shopping mall. Shannon bought 3 teddy bears and 2 flower vases for $30.5 from the same mall. what is the cost of a flower vase?

Answer 1

2T + 3F = 27

3T + 2F = 30.5

6T +9F + 81

6T + 4F = 61

subtract to get

5F = 20

F = 4 = $4 for each flower vace

T =22.5/3 = 7.5= $7.50 for each teddy bear