2 years ago

On a test with 30 questions, Bill answered 80% correctly. How many answers did he get wrong?

Mathematics

1 answer:

AveGali [126]2 years ago

5 0

Answer:

30 X .8=24 30-24=6 bill got 6 questions wrong

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spayn [35]

<u>Answer:</u>

The correct answer option is $\frac { 4 } { 4 9 }$ .

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Number of days in weekend = $2$

Probability of being born on weekend = $\frac { 2 } { 7 }$

P (both parents were born on weekend) = $\frac{2}{7} \times \frac{2}{7}$ = 4/49

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Sergio039 [100]

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