math
posted by radilyn
two pair of shoes and four pairs of sock cost 109,and three pairs of shoes and five pairs of socks cost 160 .Find the cost of pair of the sock

Collins
Let the shoe be=p
and the sock=q
2p+4q=109...first statement
3p+5q=160....second statement
..........
(2p+4q=109)3
(3p+5q=160)2
6p+12q=327
6p+10q=320
...................
2q=7
q=3.5
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