Question

Solve the equation for the price, P.

Answer 1

Solving the equation for the price, P, we have; P= 100S/(1-D)

Change of subject of formula:

According to the question;

• The formula for finding the sale price, S, on an item costing P dollars after a D% discount is; S=P(1-D)/100.

To solve for the price, P; we have;

By cross product;

• 100S = P(1-D)

By dividing through by (1-D); we have;

• P = 100S/(1-D)

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