Pre-albebra Percentages - free math help

The video tutorial explains the concept of percentages and fractions, demonstrating how to calculate percentages using examples. It covers solving proportions through cross multiplication and converting percentages to decimals. Additional examples are provided for practice, enhancing understanding of percentages and fractions.

What is a percentage in relation to a fraction?

• A percentage is a fraction with a numerator of 10.

• A percentage is a fraction with a denominator of 10.

• A percentage is a fraction with a numerator of 100.

• A percentage is a fraction with a denominator of 100.

How do you solve for a percentage when the whole is not 100?

• By subtracting the percentage from the whole.

• By using proportions and cross-multiplication.

• By dividing the percentage by the whole.

• By adding the percentage to the whole.

What is the first step in the quick method for calculating percentages?

• Convert the percentage to a decimal.

• Convert the percentage to a fraction.

• Multiply the percentage by 100.

• Divide the percentage by 100.

What is 12.5% of 95 using the quick method?

• 10.875

• 11.875

• 13.875

• 12.875

What is the decimal equivalent of 12.5%?

• 0.125

• 1.25

• 0.0125

• 12.5

How can you calculate 5% of 56?

• By dividing 56 by 0.5

• By multiplying 56 by 0.05

• By multiplying 56 by 0.5

• By dividing 56 by 0.05

What percentage is 18 out of 29?

• 82%

• 72%

• 62%

• 52%