Mathematics
Emory115
2015-11-13 07:49:12
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.
ANSWERS
Niurkisoto
2015-11-13 11:16:01

the answer is........$2.50

CelindaMuterspaw
2015-11-13 11:17:16

6x + 3y = 79.5 3x + 2y = 41     y = -3/2x + 41/2      y = -1.5x + 20.5 6x + 3(-1.5x + 20.5) = 79.5 6x - 4.5x + 61.5 = 79.5 1.5x + 61.5 = 79.5 1.5x = 18 x = 12 Each shirt costs $12. Now insert that number into the x to find the cost of each tie. 3(12) + 2y = 41 36 + 2y = 41 2y = 5 y = 2.5 Each tie costs $2.50.

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