Problem Statement: What is being asked in the problem?question_prompt: 21 is 75% of what number?
Convert to Decimal: What is 75% as a decimal?75÷100=0.7575% as decimal: 0.75
Set Up Equation: We found: 75% as decimal is 0.75. Now, we need to find the number that 21 is 75% of. This can be represented by the equation 0.75×x=21, where x is the number we are trying to find.
Solve for x: To find x, we divide both sides of the equation by 0.75. So, x=21÷0.75.