Question 945076
A student has scores of 87.75, 89, and 91 on his first three tests. He needs an average of at least 90 to earn a grade of A. What is the minimum score that the student needs on the fourth test to ensure a A?
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{{{(87.75+89+91+x)/4=90}}}
267.75+x=360
x=92.25
What is the minimum score that the student needs on the fourth test to ensure a A? 92.25