Question

Which is NOT a step when writing a mathematical statement to solve a problem involving a part, whole, and percentage? Use the information from the problem to write a second fraction. Express the percentage as an equivalent fraction. Place an equal sign between the two fractions. Cross-multiply the fractions.

Answer 1

The correct step not involved in solving problems with part, whole, and percentage is 'using the information from the problem to write a second fraction.' Usually, you express percentages as fractions, equate them, and cross-multiply to find the unknown values.

Step-by-step explanation:

When writing a mathematical statement to solve a problem involving a part, whole, and percentage, the step that is NOT a part of the process is: Use the information from the problem to write a second fraction. This is not always necessary and can sometimes create confusion. Instead, the usual steps are expressing the percentage as an equivalent fraction with a denominator of 100, equating this to the fraction that represents the part and the whole, and cross-multiplying to solve for the unknown.

The steps involved in calculating percents typically involve identifying the equation(s) needed, plugging in the known values, and using mathematical operations such as multiplication or division to find the unknown values. For example, multiplying both sides of an equation with a fractional ratio enables you to solve for the unknown.

In summary, the process can be broken down using these steps:

1. Express the percentage as an equivalent fraction.
2. Place an equal sign between the two fractions.
3. Cross-multiply the fractions to solve for the unknown part or whole.

Answer 2

The step that is NOT involved when writing a mathematical statement to solve a problem involving a part, whole, and percentage is to cross-multiply the fractions.

Step-by-step explanation:

The step that is NOT involved when writing a mathematical statement to solve a problem involving a part, whole, and percentage is to Cross-multiply the fractions.

When solving a problem involving a part, whole, and percentage, the steps are as follows:

1. Use the information from the problem to write a second fraction.
2. Express the percentage as an equivalent fraction.
3. Place an equal sign between the two fractions.
4. Ignore any typos or irrelevant parts of the questions being asked.

Cross-multiplying the fractions is not necessary in this particular context.