Kathy spent $15.60 at the post office. She paid $11.40 to send a package to her aunt and bought stamps with the rest of the money. If Kathy bought 10 stamps, which equation can be used to find x, the cost of each stamp.
A.15.60 = 11.40 + 10x
B.15.60 = 11.40 + (10 – x)>>>
C.15.60 = 10(11.40 + x)
D.15.60 = 11.40x + 10
nope. She had $4.20 to spend on stamps.
Your solution does not reflect the cost of each stamp.
To find the cost of each stamp (x), we need to subtract the amount Kathy paid to send the package ($11.40) from the total amount she spent ($15.60). Then we divide this remaining amount by the number of stamps she bought (10).
So, the equation that can be used to find x, the cost of each stamp, is:
15.60 = 11.40 + 10x
Therefore, the correct answer is A. 15.60 = 11.40 + 10x.