Question

Tiffany's quiz grades on the first four quizzes are 72. 87.83 and 91. In terms of an inequality, what scores on the last quiz will allow her to get an average of at least 85? x 90 x 91 x92 X 390 x 591 X592 Click Save and Subint to save and submit Click Save Al e rt to an alla

Answer 1

Answer:

Correct answer is 92

Step-by-step explanation:

Let the score that she need's be = x

According to given condition we have

$\frac{72+87+83+91+X}{5}\geq 85\\\\\frac{333+X}{5}\geq 85\\\\333+X\geq 425\\\\X\geq 92$