|
Question 145949This question is from textbook Algebra For college students
: Can anyone help? "Alvin has scores of 94, 80, 89, and 92 on his first four exams in a symbolic logic class. If the fifth test is the last test, what must he score on the fifth test to have an overall average of 90?" Thank you.
This question is from textbook Algebra For college students
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Alvin has scores of 94, 80, 89, and 92 on his first four exams in a symbolic logic class. If the fifth test is the last test, what must he score on the fifth test to have an overall average of 90?
-----------------
Let the 5th test score be "x".
-------------
EQUATION:
(94 + 80 + 89 + 92 + x)/5 = 90
--------------
(94 + 80 + 89 + 92 + x) = 450
--------------
355 + x = 450
x = 95
========================
Cheers,
Stan H.
|
|
|
| |
