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In Exercises 21-34, express each percent as a decimal. \(\frac{3}{4} \%\)

Short Answer

Expert verified
The percent \(\frac{3}{4}\%\) when expressed as a decimal is \(0.0075\)

Step by step solution

01

Express the Fraction as a Decimal

Firstly, you need to express the fraction \(\frac{3}{4}\) as a decimal. To do this, divide the numerator by the denominator, which gives the result \(0.75\).
02

Convert the Decimal to a Percentage

Now that we have the fraction as a decimal, it must be converted into a percent. To do this, multiply the decimal value by 100, which yields \(0.75*100 = 75\%\).
03

Convert the Percentage to a Decimal

Finally, as 1% is equal to \(0.01\) when expressed as a decimal, this means that \(75\% = 75 * 0.01 = 0.75\). However, the original percentage is \(\frac{3}{4}\% = 0.75\%\), not \(75\%\). Therefore, it needs to be converted into a decimal, which yields \(0.75\% = 0.75 * 0.01 = 0.0075\).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Fractions
Fractions are a fundamental concept in mathematics that represent a part of a whole. They are comprised of two numbers, the numerator and the denominator, separated by a line. The numerator represents how many parts you have, while the denominator indicates into how many equal parts the whole is divided. For example, in the fraction \(\frac{3}{4}\), 3 is the numerator and 4 is the denominator. This means that the whole is divided into four parts, and you have three of those parts.

Fractions can often be converted into decimals, which is useful for various calculations. To convert a fraction to a decimal, you simply divide the numerator by the denominator. In our example, dividing 3 by 4 gives \(0.75\). Keep in mind that not all fractions will convert into neat, terminating decimals; some will result in repeating decimals.
Decimal Conversion
Decimal conversion is a key skill in understanding and performing mathematical operations. This process allows you to express different representations of numbers, such as fractions and percentages, as decimals.

When converting a fraction like \(\frac{3}{4}\) into a decimal, the process involves dividing the numerator by the denominator: 3 divided by 4 equals \(0.75\). However, the twist in our example is that we actually have the percentage form: \(\frac{3}{4}\%\).

To convert a percentage into a decimal, you divide by 100, because 1% is equivalent to \(0.01\) as a decimal. Therefore, \(\frac{3}{4}\%\) means we must handle it as \(0.75 / 100\), which gives \(0.0075\). This is an essential technique, as it enables us to work easily with numbers in various formats.
Mathematical Operations
Mathematical operations are the procedures used to manipulate numbers and expressions. Understanding these operations is crucial to solving problems and expressing numbers in different ways, such as converting fractions to decimals or percentages.

In the context of converting \(\frac{3}{4}\%\) to a decimal, we employ several operations. We first convert the fraction \(\frac{3}{4}\) into a decimal by division, getting \(0.75\). Next, to handle the percentage, we multiply the \(0.75\) by \(\frac{1}{100}\) (since \(1\%\) is equivalent to \(0.01\)), yielding the decimal \(0.0075\).

Each operation is a step toward correctly interpreting the expression in different forms, and knowing these operations allows us to confidently convert and manipulate numbers in mathematical calculations. By breaking down these processes, you can approach problems methodically and ensure accurate results.

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