Yahoo Answers: Answers and Comments for Math Question I need help with.? [Mathematics]
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Mon, 21 Oct 2019 14:49:56 +0000
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Yahoo Answers: Answers and Comments for Math Question I need help with.? [Mathematics]
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https://answers.yahoo.com/question/index?qid=20191021144956AAKZGxj
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From sepia: Thomas has taken 3 exams.
The average of his ...
https://answers.yahoo.com/question/index?qid=20191021144956AAKZGxj
https://answers.yahoo.com/question/index?qid=20191021144956AAKZGxj
Mon, 21 Oct 2019 14:54:30 +0000
Thomas has taken 3 exams.
The average of his 3 test scores was 198/3.
His grade on the first test is 15 more than the second test.
The sum of the first and the third test is 142.
x = y + 15
x + z = 142
x + y + z = 198
y = 56
x = 71
z = 71
His scores on the 3 exams: 56, 71, and 71.