Question

Your goal this year is to earn a B or better in Algebra
class. If you do, your parents said they would give you
$200. Write an inequality to represent the grades you
can earn and receive money from your parents for it.
Then explain the graph for the inequality. Hint;
Remember you cannot earn higher than a 100 in any
class.

Answer 1

Your score must be at least 80 for your parent to give you $200

The inequality that represents the your score is 80 <= x <=100

How to determine the inequalty?

In a grading system;

A score of 80% would earn a student a B grade

This means that:

If you want to earn a B or better in Algebra class, then you have to score at least 80 in the Algebra class i.e 80 or above

So, the inequality is:

x >= 80

Given that the score cannot exceed 100; the inequality becomes

x >= 80 and x <=100

Rewrite as:

80 <= x and x <=100

Combine both inequalities

80 <= x <=100

Hence, the inequality that represents the student score is 80 <= x <=100

Read more about inequalities at:

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