Understanding Percentages

The video tutorial explains how to determine what percent 100 is of 80. It begins by setting up the problem and clarifying common confusions. The instructor then formulates an equation, solves for x, and converts the result into a percentage. The solution is verified, showing that 100 is 125% of 80, and the problem is concluded.

What is the main challenge people face when solving '100 is what percent of 80'?

• Understanding the language of the problem

• Finding the common factor

• Converting fractions to decimals

• Multiplying numbers correctly

What equation is set up to find the percentage of 100 in relation to 80?

• x - 80 = 100

• 100 / x = 80

• 80 * x = 100

• 80 + x = 100

What is the value of x when solving the equation 80 * x = 100?

• 4/5

• 5/4

• 1/4

• 4/1

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

How is the fraction 5/4 converted into a decimal?

• By adding 0.25

• By dividing 5 by 4

• By subtracting 0.75

• By multiplying by 100

What is the decimal equivalent of 5/4?

• 1.0

• 0.75

• 1.25

• 1.5

What is the first step in converting a fraction to a percentage?

• Subtract 100

• Add 100

• Multiply by 100

• Divide by 100

What is the final percentage when 1.25 is converted to a percentage?

• 100%

• 175%

• 125%

• 150%

Why does it make sense that 100 is 125% of 80?

• Because 80 is equal to 100

• Because 100 is more than 80

• Because 80 is less than 100

• Because 100 is less than 80

What is the relationship between 80 and 100 in terms of percentage?

• 80 is 125% of 100

• 100 is 80% of 80

• 100 is 125% of 80

• 80 is 100% of 100

What is the significance of shifting the decimal point twice to the right?

• It converts a percentage to a decimal

• It converts a decimal to a percentage

• It converts a decimal to a fraction

• It converts a fraction to a decimal