Inequalities help us to compare two unequal expressions. The correct option is A, (6+x)/15>(9/10).
What are inequalities?
Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed. It is mostly denoted by the symbol <, >, ≤, and ≥.
Given that Melinda will take 15 quizzes this semester. She would like to score a B or better on at least 90% of them. Therefore, the ratio of the number of questions done to the total number of questions should be greater than 90%.
Also, given that Melinda has already gotten a b or better on 6 quizzes. Therefore, we can write the inequality as,
(6+x)/15 > 90%
(6+x)/15 > 90/100
(6+x)/15 > 9/10
Learn more about Inequality:
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