SOLUTION: Students in a math class need an average of at least 90 points to earn an A. One students test scores are 88, 91, and 85. What must the student score on the next test to earn an A.
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Question 181975This question is from textbook pre-algebra
: Students in a math class need an average of at least 90 points to earn an A. One students test scores are 88, 91, and 85. What must the student score on the next test to earn an A. This question is from textbook pre-algebra
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Let x = score earned on next test
then
(88 + 91 + 85 + x)/4 >= 90
264 + x >= 360
x >= 360-264
x >= 96
.
The student must score at least a 96.
