Question

Mary spent a third of her weekly allowance playing arcade games. She spent$4.32 on candy. Write an expression for how much money Mary has now.

Answer 1

`(1)/(3) * x = 4.32 \\ x = 4.32 / (1)/(3) \\ x = 12.96 \\ y = (2)/(3) * x \\ y = (2)/(3) * 12.96 \\ y = 8.64`
I hope this is what you were looking for

Answer 2

Answer with explanation:

Let weekly allowance of Mary = $ a

Expenditure of Mary

→Spent a third of her weekly allowance playing arcade games.

→ $ 4.32 is spent on Candy.

⇒Writing the expression for amount of money Mary has

Let b be the amount of Money left with Mary after the expenditure.

`\Rightarrow b=a -((a)/(3)+4.32)\\\\\Rightarrow b=a -(a)/(3)-4.32\\\\\Rightarrow b=(2a)/(3)-4.32`