Multiplication and Equation Verification

This video tutorial teaches how to solve problems involving percentages by treating them as equations. It begins by defining equations and percentages, then introduces a word problem: finding 15% of 40. The video explains the formula 'percent over 100 equals IS over OF' and demonstrates how to set up and solve the equation using diagonal multiplication. The solution is verified by checking the balance of the equation. The tutorial concludes by encouraging viewers to watch additional videos in the series for a comprehensive understanding.

What is an equation?

• A type of fraction

• A mathematical operation

• A number that is part of a hundred

• A statement that two quantities are equal

What symbol is used to identify a percentage?

• Equal sign

• Percent sign

• Plus sign

• Division sign

In the formula 'Percent over 100 equals IS over OF', what does 'OF' represent?

• The unknown value

• The total or whole quantity

• The percentage

• The part of the whole

What is the first step in solving the word problem 'What is 15% of 40?'?

• Plug known values into the formula

• Divide 15 by 40

• Subtract 15 from 40

• Multiply 15 by 40

What is the unknown variable represented by in the formula?

• Y

• Z

• X

• A

How do you multiply when solving the equation?

• Horizontally

• Vertically

• Diagonally

• In a circle

What is the result of multiplying 15 by 40?

• 600

• 1000

• 800

• 400

What is the purpose of using reverse operations in solving equations?

• To isolate the unknown variable

• To add more variables

• To change the equation's balance

• To make the equation more complex

What operation is used to reverse multiplication in an equation?

• Addition

• Subtraction

• Division

• Multiplication

What is the final value of X in the problem 'What is 15% of 40?'?

• 6

• 7

• 5

• 4