in an exam 90% students passed if the 15 student fail find the number of students appeared in the examination
2 answers:
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An equation between two variables that gives a straight line when plotted on a graph.
2y = x+ x+ 1
2y = 2x + 1
y = (2x+ 1) /2
y = x + 1/2
According to the graph, this equation is linear
