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amazingmariah1234
01.01.2022 •
Mathematics
Mr. Rosart selects two students from his class to present their book reports. He places the names of each student in a box and randomly picks one at a time. The class has 15 boys and 11 girls. What is the probability that the second name Mr. Rosart picks is a boy, if the first one is a boy also? Round your answer to the nearest percent.
A. 54%
B. 44%
C. 60%
D. 56%
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Ответ:
D. 56%
Step-by-step explanation:
For the fractions we will do:
It depends on if he puts the first name back in, but I am going to asume Mr. Rosart does not, so we will subtract one from the boys for the second pull.
[Wanted over possible]![\frac{14}{25}](/tpl/images/2609/4759/81f2b.png)
[Dividing] 14 / 25 = 0.56
[Making a percent] .56 * 100 = 56%
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Ответ:
18 (miles traveled until gas was needed) + x (the miles traveled without needing gas) = 42 (total miles traveled)