Answer:
The correct answer is option D. 6/56
Step-by-step explanation:
It is given that, there are 8 people.
The host randomly chooses 3 people from the front row to be contestants.
<u>To find the required probability</u>
There are 56 ways to choose the 3 contestants.
2 people must be selected. Remaining 1 is selected from 6 people in 6 ways.
Therefore required probability = 6/56
The correct answer is option D. 6/56
Answer:
hi
Step-by-step explanation:
Answer:
oh cool good luck
Step-by-step explanation:
Answer: Number of hours they all will take is ![\frac{12}{7}=1\frac{5}{7}\ hours](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B7%7D%3D1%5Cfrac%7B5%7D%7B7%7D%5C%20hours)
Step-by-step explanation:
Since we have given that
Number of hours Walter and Bill takes to do the job = 4 hours
Number of hours Tom alone takes to do the job = 3 hours
We need to find the number of hours takes them together to decorate the room.
Work done by Walter and Bill = ![\frac{1}{4}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D)
Work done by Tome = ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
total work done by three is given by
![\frac{1}{4}+\frac{1}{3}\\\\=\frac{3+4}{12}\\\\=\frac{7}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%2B%5Cfrac%7B1%7D%7B3%7D%5C%5C%5C%5C%3D%5Cfrac%7B3%2B4%7D%7B12%7D%5C%5C%5C%5C%3D%5Cfrac%7B7%7D%7B12%7D)
Hence, Number of hours they all will take is ![\frac{12}{7}=1\frac{5}{7}\ hours](https://tex.z-dn.net/?f=%5Cfrac%7B12%7D%7B7%7D%3D1%5Cfrac%7B5%7D%7B7%7D%5C%20hours)
Answer:
that's wrong, its 217 1/2 miles
Step-by-step explanation:
3/4 of a minute is 45 seconds
the easiest way to this is you figure there is 15 intervals of 3 seconds in 45 seconds so do 15 times 14.5 and get 217 1/2 miles