How to apply cross multiplication to solve a proportion

How to apply cross multiplication to solve a proportion

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve equations by undoing operations on variables. It introduces inverse operations and demonstrates how to apply them to solve equations. The cross multiplying technique is also covered, showing how it simplifies solving proportions. Finally, the video walks through solving an equation step-by-step, using the distributive property and isolating variables.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

To make the equation more complex

To simplify the equation by undoing operations

To add more variables to the equation

To change the equation's variables

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which operation would you use to undo division by 5 in an equation?

Divide by 5

Add 5

Multiply by 5

Subtract 5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of using cross multiplication?

It eliminates the need for variables

It changes the equation's structure

It allows for adding more terms to the equation

It simplifies solving proportions by equating cross products

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What property is applied to distribute terms across an equation?

Commutative Property

Associative Property

Identity Property

Distributive Property

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you isolate a variable in an equation?

Subtract the variable from both sides

Get all terms with the variable on one side and divide by its coefficient

Multiply the variable by zero

Add the variable to both sides