Write an equation to represent the hanger and solve.

The formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.

Step-by-step explanation:

Given:

p = 5x+3y (1)

The formula that can be used to determine the number of cupcakes sold, i.e. x, given p and y, can be obtain by solving for x in equation (1) above as follows:

5x = p - 3y

Divide through by 5, we have:

x = P/5 - (3/5)y

x = (1/5)p - (3/5)y

x = 0.2p - 0.6y

Therefore, the formula that can be used to determine the number of cupcakes sold is x = 0.2p - 0.6y.