Question

In a certain clothing store, 6 shirts and 3 ties cost $79.50, and 3 shirts and 2 ties cost $41. Determine the cost of each tie.

a) $2.50
b) $3.50
c) $4.50

Answer 1

Equations:

6s + 3t = 79.50
3s + 2t = 41
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Modify:
18s + 9t = 3*79.5
18s + 12t= 6*41
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300x250

Subtract and solve for "t":
3t = 7.5
t = $2.50 (price of one tie)