If there are 15 samples, it means that 15 is the total (100%) of samples. Then, if we know that there is a chance that 3% are mutated, then we calculate the 3% of 15:

$Mutated= \frac{3. 15}{100} = 0.45$

This means that at most one sample is mutated, as this result is not zero (we discard answer A), and 0.45 is not more than half of the samples.

5 0

3 years ago

What multiplication problem does the model show? And why? please explain.

zlopas [31]

This problem shows 2/5 times 1/3 (Choice C). You can determine this by looking at the number of complete columns that are shaded out of the total number of columns(2/5). The look at how many complete rows are shaded out of the total number of rows shown(1/3). The overlapping part becomes the answer to the multiplication of these 2 fractions.

5 0

3 years ago

Can someone help me with both these problems?? Thx!

Vanyuwa [196]

#9 is yes because 12 is double 6. 6+6=12 I don't know #10. Sorry!

3 0

3 years ago