Final answer:
When solving for "What percent" in an equation, we translate it to x/100, representing the unknown percentage. This notation helps to perform calculations to find the actual percentage value.
Step-by-step explanation:
When an equation asks us to solve for "What percent", we translate "What percent" to A) x/100. The term percent comes from the Latin per centum, which means by the hundred. Therefore, a percent is a ratio whose denominator is 100. For example, if we have 25%, it means 25 out of 100, or 25/100. When we want to express an unknown percent, we often use a variable over 100, such as x/100. This fraction can then be used in calculations to find out the actual percentage value once the value of x is known.
To convert a decimal to a percent, we write the decimal as a fraction. If the fraction's denominator is not 100, we would adjust the fraction to have a denominator of 100, then multiply the numerator by 100 to get the percent value. Similarly, percentage calculations often involve dividing the part by the whole and then multiplying by 100 to find the percentage that the part represents of the whole.