please help me ive been trying to figure this out all night:(
ali and keesha found a sale at a sporting goods store. ali bought 2 pairs of shorts and 3 pairs of sock for $33 . keesha bought 1 pair of shorts and 5 pairs of socks for $27. how much is 1 of each item cost. please answer this ive been trying to figure it out all night.
When you talk about pair it is alway 2 pcs.
Ali
2(2) Short + 3(2)Sock = $ 33
4Short + 6 sock = $ 33 call this eq1
Keesha:
1(2) short + 5(2) socks = $ 27
2 Short + 10 Sock = $ 27 call this eq2
multiply eq2 by (-2)
-4 short - 20 sock = -54
then add this to eq1 → 4Short + 6 sock = $ 33
Result will be :
0 - 14 Sock = - 21
Sock = 21 / 14
Sock = $1.5
Substitute Sock in eq1 → 4Short + 6 sock = $ 33
4short + 6(1.5) = 33
4 Short = 33 - 9
4 Short = 24
Short = $ 6