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If the average score of a class of 25 students is 75?
If 15 female students in the class average 70, then the male students in the class averaged? a.85 b. 82.5 C. 77.5 d.75.0 e. 70.0 I've been doing homework for eight hours...my brain is fried!!! Help please!
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- CoachTLv 71 decade agoFavorite Answer
move everything to the right one thing at a time: ☺
((15 * 70) + 10x) / 25 = 75
1050 + 10x = 75 * 25 [1875]
10x = 1875 - 1050 [825]
x = 825/10
x = 82.5
b.
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