Understanding Percentages

The video tutorial explains how to solve the problem of finding 5% of 80 using the formula 'is over of equals perc over 100'. It guides through setting up the equation, cross-multiplying, and solving for the unknown variable X, concluding that 4 is 5% of 80.

What is the formula used to find a percentage of a number?

• is minus of equals perc

• is plus of equals perc

• is over of equals perc over 100

• is equals of times perc

In the formula 'is over of equals perc over 100', what does 'is' represent in the problem 'What is 5% of 80'?

• The number 5

• The unknown value X

• The percentage

• The number 80

What value is substituted for 'of' in the formula when solving 'What is 5% of 80'?

• 100

• X

• 80

• 5

What is the result of cross-multiplying 5 and 80 in the equation?

• 500

• 5

• 400

• 80

What is the final value of X when solving 'What is 5% of 80'?

• 5

• 100

• 80

• 4