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.
Algebra.Com
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
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
.
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.
RELATED QUESTIONS
Students in a math class need an average of at least 90 points to earn an A. One... (answered by checkley77)
To get an A in her math course, Tina needs, the average of five tests to be at least 90.... (answered by macston)
The average for Aaron’s test scores must be at least a 90 to earn an a in the class Aaron (answered by greenestamps)
Maya's test scores are 98, 90, and 86. If he must average at least 90 points to get an A... (answered by Cromlix)
A particular math class wants to have a class test average above a 90. On the last 2 math (answered by stanbon)
To enter a competition,students must score a total of at least 430 points on five... (answered by ikleyn)
In order to earn an A in college math class, a student must score no less than 90% of all (answered by stanbon)
In order to earn an A in a class, your test scores must average at least 92%. On the... (answered by oberobic)
In order to earn an A in a class your test scores must average at least 92%. On the first (answered by rfer)