SOLUTION: A student earns an 82% on her first test. How many consecutive 100% test scores does she need to bring her average up to 95%? Assume that each test has equal impact on her average

Question 1010778: A student earns an 82% on her first test. How many consecutive 100% test scores does she need to bring her average up to 95%? Assume that each test has equal impact on her average grade.

Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
x=number of additional tests
.
(82+100x)/(x+1)=95
82+100x=95(x+1)
82+100x=95x+95
100x=95x+13
5x=13
x=13/5=2.6
ANSWER: She will have to score 100%
on 2.6 consecutive tests to average 95%.

RELATED QUESTIONS
A STUDENT RECEVIES GRADES OF 84,79 AND 82 ON HER FIRST CHEMISTRY TEST. WHAT GRADE MUST... (answered by josmiceli)

Jasmine's test scores are 85%, 99%,82%, and 95% . what score does she need on the last... (answered by a)

After 5 math tests (worth 100 points each) Karen has an average of 83%. What score does... (answered by solver91311)

Destiny earned a 90, 88, and 77 on her first three test. What does she need to earn on... (answered by macston)

A student scores 72, 74, 82 and 81 on the first four tests. What score does the student (answered by macston)

Claudia has test scores of 78, 88, 84, 92, 76, 98. If she wants to end up with a ''B''... (answered by LinnW)

Claire scored a 94, 96, 82, and 98 on her first four math tests. What does she need to... (answered by addingup)

Maria scored 72, 97, and 82 on her first three math tests. She wants to have a mean score (answered by solver91311)

A student scores 73 out of 100 if the maximum score on the next test is also 100 points,... (answered by ewatrrr)