In a exam 90% students passed.if 15 students failed,find the number of students appeared in the examination?
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A linear equation that represents the model is: x + 6 = 10; x = 4
<h3>How to solve linear equations?</h3>Let us first define the variables based on the attached image of the ball balance:
Let x = number of balls that contains the square.
On the left side, we have; square + 6 balls
On the right side, we have; 10 balls
To balance this, we have;
x + 6 = 10
x = 10-6
x = 4
Thus, a linear equation that represents the model is:
x + 6 = 10; x = 4
Read more about Linear equations at; brainly.com/question/9406333
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