3 years ago

If a math class consists of 21 students total there are five more boys than girls, how many girls are there in the class

1 answer:

klio [65]3 years ago

8 0

There are 8 girls and 13 boys

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yKpoI14uk [10]

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I think I'm correct

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Sever21 [200]

This is the work and the answer is 4/23 or (in decimal form) 0.17391304

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Oduvanchick [21]

It's likely that the event will occur.

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evablogger [386]

<span>The term that you want is 5C2*p^2*q^3 representing 2 successes and 3 failures. This term's value is</span>

<span>(5C2)(0.5^5) = 10*0.03125 = 0.3125 = P(2 successes in 5 trials) =31.3% </span>

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3 years ago