Posted by Mary on Saturday, November 3, 2012 at 10:45pm.
There are 40 questions on a class test. Six points are given for each correct answer and three points are deducted for each wrong answer. Find the number of correct answers for a test score of 105.

Math  Reiny, Saturday, November 3, 2012 at 10:50pm
correct  x
incorrect  40x
6x  3(40x) = 105
6x  120 + 3x = 105
9x = 225
x = 25
25 correct , 15 wrong

Math  mike, Tuesday, March 31, 2015 at 10:03pm
52(125)=39
524+2=39
7=63
9
I Need to know am I right
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