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Advocard [28]
3 years ago
14

Adam's average homework score, worth 40% of his grade, is 76%. His average unit test score, worth another 40%, was 81%. The fina

l makes up the rest of his total grade. What is the minimum number of questions he need to answer correctly on the 50-question final exam to earn a B (80%) in the class?
Mathematics
1 answer:
solniwko [45]3 years ago
8 0
He needs to answer 41 questions correctly.
The average of his original percentages in 78.5%. if you double 50 so it is on a scale out of a hundred, Adam has to get an 82% at least, or 41 questions.
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4 years ago
Find the general solution to 3y′′+12y=0. Give your answer as y=... . In your answer, use c1 and c2 to denote arbitrary constants
lozanna [386]

Answer:

y(x)=c_1e^{2ix}+c_2e^{-2ix}

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4 0
3 years ago
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AURORKA [14]

Answer:

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3 years ago
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