SOLUTION: Test 1- 65
Test 2- 83
Test 3- 81
Test 4- ?
You're headed into Test 4, the final grade for the semester. Is it possible for you to earn a B grade (85% or better) ?
Algebra ->
Average
-> SOLUTION: Test 1- 65
Test 2- 83
Test 3- 81
Test 4- ?
You're headed into Test 4, the final grade for the semester. Is it possible for you to earn a B grade (85% or better) ?
Log On
Question 646534: Test 1- 65
Test 2- 83
Test 3- 81
Test 4- ?
You're headed into Test 4, the final grade for the semester. Is it possible for you to earn a B grade (85% or better) ? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Test 1- 65
Test 2- 83
Test 3- 81
Test 4- ?
You're headed into Test 4, the final grade for the semester. Is it possible for you to earn a B grade (85% or better) ?
-------
Let the 4th test score be "x".
----
Equation:
(65+83+81+x)/4 = 85
-----
(229+x) = 4*85 = 340
--------------------------
x = 340-229 = 111
====
Looks like you cannot average 85 for the 1st 4 exams.
==================
Cheers,
Stan H.
(