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Learn how to solve a proportion by applying cross multiplication

Learn how to solve a proportion by applying cross multiplication

Assessment

Interactive Video

Mathematics

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial demonstrates how to solve a proportion using cross multiplication, emphasizing the importance of using parentheses to ensure correct distribution in expressions. It walks through solving a linear equation step-by-step, concluding with the final solution and verification of the process.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one method mentioned for solving proportions?

Finding the derivative

Using the quadratic formula

Completing the square

Cross-multiplication

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does the teacher prefer not to use cross-multiplication?

It takes too long

It does not require understanding the problem

It is too complicated

It is not a valid method

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are parentheses important when multiplying expressions in a proportion?

They make the equation look neat

They help in distributing terms correctly

They are required by mathematical rules

They simplify the equation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the linear equation derived from the proportion?

Divide both sides by the variable

Add terms to both sides

Multiply both sides by a constant

Subtract terms from both sides

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final solution for the variable Y in the equation?

Y = -7/18

Y = 7/18

Y = 18/7

Y = -18/7

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