Which describes an organ system?

Mathematics

1 answer:

pshichka [43]2 years ago

4 0

D cause of biology hope this is right

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In 2 hours reggie drives 220 kilometers how many kilometers can he drive in 6 hours

Sav [38]

The answer to this question would be 660

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2 years ago

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428 students were surveyed about their preferences of sports. 146 students like football, 144 students like baseball, and 45 stu

ella [17]

This is what we already know:

$\left[\begin{array}{cccc} &YB&NB&total\\YF&45&[unknown]&146\\NF&[unknown]&[unknown]&[unknown]\\total&144&[unknown]&428\end{array}\right]$

And using this information, we can fill the table out. Remember that everything must add up to the total in the column and row. The complete table looks like this:

$\left[\begin{array}{cccc} &YB&NB&total\\YF&45&101&146\\NF&99&183&282\\total&144&284&428\end{array}\right]$

Using the complete table, we see the fraction for students that only like baseball is $\frac{99}{428}$ and students who only like football is $\frac{101}{428}$ . All you need to do is add these fractions together to get your answer.