Shuping and joshua had the same amount of money. Joshua paid $9.10 for a bag and had $16.25 left. Shuping bought a pen and had $19.60 left. How much did the pen cost

Answer: the cost of the pen is $5.75

Step-by-step explanation:

Let x represent the cost of the pen.

Shuping and joshua had the same amount of money. Joshua paid $9.10 for a bag and had $16.25 left. This means that the amount of money that Joshua had initially was

16.25 + 9.1 = $25.35

Shuping bought a pen and had $19.60 left. Since they have the same amount of money initially, it means that

x + 19.6 = 25.35

x = 25.35 - 19.6

x = $5.75