Answer:
[tex]25+3d=135.97[/tex]
[tex]d=\$36.99[/tex]
Step-by-step explanation:
Let
d ----> the cost of each pair of shoes
we know that
The number of socks multiplied by it cost plus the number of pairs of shoes multiplied by it cost must be equal to $135.97
so
The linear equation that represent this situation is
[tex]10(2.50)+3(d)=135.97[/tex]
[tex]25+3d=135.97[/tex]
Solve for d
subtract 25 both sides
[tex]3d=135.97-25[/tex]
[tex]3d=110.97[/tex]
divide by 3 both sides
[tex]d=\$36.99[/tex]
The cost of each pair of shoe is $36.99