SOLUTION: Directions: Choose a variable, setup equation, and solve. Dress socks cost $2.50 a pair more than athletic socks. Randall purchased one pair of dress socks and six pairs of athlet

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Directions: Choose a variable, setup equation, and solve. Dress socks cost $2.50 a pair more than athletic socks. Randall purchased one pair of dress socks and six pairs of athlet      Log On

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Question 408695: Directions: Choose a variable, setup equation, and solve.
Dress socks cost $2.50 a pair more than athletic socks. Randall purchased one pair of dress socks and six pairs of athletic socks for $21.75. Find the price of a pair of dress socks.
I said b = dress socks
b +2.50b = 21.75
That's all I could get and I think it's wrong.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Not quite. If the dress socks cost b, then we can say that the athletic socks cost b-2.5. Also, six pairs of athletic socks were bought. Thus, we have

b+%2B+6%28b+-+2.5%29+=+21.75

7b+-+15+=+21.75

7b+=+36.75

b+=+5.25 <--- Price of a pair of dress socks