Convert the problem to an equation using the percentage formula: P% * X = Y P is 10%, X is 150, so the equation is 10% * 150 = Y Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10 Substitute 0.10 for 10% in the equation: 10% * 150 = Y becomes 0.10 * 150 = Y Do the math: 0.10 * 150 = 15 Y = 15 So 10% of 150 is 15 Double check your answer with the original question: What is 10% of 150? Multiply 0.10 * 150 = 15
