Two pairs of shoes and four pairs of socks cost $131, and three pairs of shoes and five pairs of socks cost $190. find the cost of a pair of socks.

S = shoes
x = socks

 3( 2s + 4x = 131) >  6s + 12x = 393
-2( 3s + 5x = 190) >-6s - 10x = -380

(2x = 13)/ 2

x = 6.5

A pair of socks is equal to $6. 50

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The cost of a pair of socks would be $6.50

One shot. if 60% of 10 is 6, then what is 70%? we know it would be seven (since 60% is mathematically 60/100, or 6/10, then 70% is 70/100, or 7/10) but we can check anyway using ratios: 6 : 60% = x : 70%*inverse multiplicationx * 60% = 6 * 70%*divide both sides by 60%x = (6 * 70%) / 60%x = 7and since he has made 6 shots already, he would need just one more to get 7 shots or 70%. if the explanation is too confusing, comment and i will try to