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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Measurement

Grade Lesson s3-p2

Explanation: The best way to understand PSAT-4 is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1 Example2

Solve for x (x+3):5 = (x+6):3.

Step: 1

Convert the provided proportion into a fraction \$(x + 3)/5\$ = \$(x + 6)/3\$.

For this step, multiply the numbers using cross-multiplication:
(x + 3)3 = (x + 6)5

3x + 9 = 5x + 30

Explanation:

Here, converting proportion into a fraction \$(x + 3)/5\$ = \$(x + 6)/3\$.
After multiply the numbers then we get 3x + 9 = 5x + 30.

Step: 2

In this step, 5x - 3x = 30 - 9.
Simplifying both sides gives 2x = 21
Therefore, the value of x is 21 divided by 2, which equals 10.5.

Explanation:

In this step, we find the x value by dividing both sides by 2, which gives us 21.5.