(A) The total cost of the bracelet and 1 dress in terms of x is $(20x + 9) + $(20x + 9 + 2) = $40x + 20.
(B) If x = 15, the total cost would be $(40*15) + 20 = $620.
Thus, she paid $620 altogether.
A bracelet costs $(20x + 9) and a dress costs $2x more than the bracelet. She bought a bracelet and a dress.
(A) What is the total cost of the bracelet and 1 such dress in terms of x?
(B) If x = 15, how much did she pay altogether?
1 answer
1 answer