math
posted by jeanna .
5 hockey pucks and three hockey sticks costs $23. 5 hockey pucks and 1 hockey stick costs $20. How much does 1 hockey puck cost?

5p + 3s = 23
5p + s = 20
s = 20  5p
5p + 3(205p) = 23
5p  60  15p = 23
10p =  37
p = 3.70
s = 1.50