As per linear equation, there are 120 red balls and 150 yellow balls in the bag.
What is a linear equation?
A linear equation is an equation that has one or multiple variables with the highest power of the variable is 1.
Given, the ratio of the number of red balls to yellow balls in a bag is 4:5. There are 270 balls in the bag.
Let, there are 4x red balls in the bag.
Therefore, there are 5x yellow balls in the bag.
Now, (4x + 5x) = 270
⇒ 9x = 270
⇒ x = 270/9
⇒ x = 30
The number of red balls = 4x = 4 × 30 = 120.
The number of yellow balls = 5x = 5 × 30 = 150.
Learn more about linear equation here: https://brainly.com/question/15898506
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