Patrick purchased some supplies for his guitar students. He bought 25 guitar picks and 25 guitar strings since they only cost $1 more than the guitar picks. He spent a total of $40. If c is the cost of one guitar pick, find the cost of one guitar string.(1 point)
$$
Let c be the cost of one guitar pick.
The cost of 25 guitar picks is 25*c.
The cost of one guitar string is c+1.
The cost of 25 guitar strings is 25*(c+1) = 25c+25.
The total cost of the supplies is 40 dollars.
25c + 25c + 25 = 40
50c + 25 = 40
50c = 40 - 25
50c = 15
c = 15/50
c = 3/10
The cost of one guitar string is c+1 = 3/10 + 10/10 = 13/10 = $<<13/10=1.30>>1.30. Answer: \boxed{1.30}.