SOLUTION: on teh first 6 tests of his spanish test, brandon got an average score of 85. What does he need on the next test t have an overall average of 87?
How to solve? Thanks!
Algebra.Com
Question 699233: on teh first 6 tests of his spanish test, brandon got an average score of 85. What does he need on the next test t have an overall average of 87?
How to solve? Thanks!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
on the first 6 tests of his spanish test, brandon got an average score of 85. What does he need on the next test t have an overall average of 87?
---
# of points gotten on the 1st 6 tests: 6*85 = 510
----
Equation:
(510+t)/7 = 87
---
510+t = 609
----
t = 99 (score needed on final test)
==============
Cheers,
Stan H.
RELATED QUESTIONS
On the first 3 tests of his Spanish class, Kevin got an average score of 83.
What does (answered by josmiceli)
On the first 3 tests of his chemistry class, Omar got an average score of 85.
What... (answered by ewatrrr)
On the first 4 tests of his math class, Ben got an average score of 84.
What does he... (answered by TimothyLamb)
On the first 4 tests of her language class, Vanessa got an average score of 85.
What... (answered by ewatrrr,TimothyLamb)
Frank got scores of 75, 83, and 79 on his first three tests. What score does he need to... (answered by bucky)
On the first 4 quizzes of his chemistry class, Brandon got an average score of 81.... (answered by ewatrrr)
Quinn's test scores are 95,90,and 83.what must he score on his next test to have an... (answered by ewatrrr)
Ray had scores of 75, 82, 94 and 77 on his first four math tests. What must he score on... (answered by TimothyLamb)
marquis scores on his first four tests 95,45, 86, and 100. What will he have to score on... (answered by richwmiller)