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nikdorinn [45]
3 years ago
13

In a class of 888, there are 333 students who have done their homework. If the teacher chooses 222 students, what is the probabi

lity that both of them have done their homework?
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0
555 of the students haven’t did there work
TEA [102]3 years ago
7 0

Answer:

3/28

Step-by-step explanation:

3/8 * 2/7 = 6/56 = 3/28

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A plane flies 15 miles in 20 seconds. How long would it take the plane to cover 30 miles?
ExtremeBDS [4]

Answer:it would take the plane 40 seconds

Step-by-step explanation:

if you multiply by two then you would be able to get 30

like 15 times 2 and since it’s 15 miles to 20 seconds or 15:20 you would have to multiply by the same number.

6 0
3 years ago
Tony made 2 fruit pies. After his family ate some of each pie, 13 of one pie remained and 56 of the other pie remained. About ho
omeli [17]

Answer:

<h2>There remains 7/6 of pie.</h2>

Step-by-step explanation:

Givens

The remaining parts are 1/3 of one pie and 5/6 of the other pie.

To find how much pie is remaining, we just need to sum those fractions.

\frac{1}{3}+\frac{5}{6}=\frac{6+15}{18} =\frac{21}{18} =\frac{7}{6}

Therefore, there remains 7/6 of pie. They ate just 1/6.

4 0
3 years ago
What is the square root of 7?
galben [10]

Answer:

2.64575131106

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Pick three numbers and make a fact family. <br><br> 4, 5 <br><br> 2, 1
Cloud [144]
That’s a very good question but i don’t know the answer however it may be animals
3 0
3 years ago
Suppose we choose7 objects without replacement from 9 objects
stiks02 [169]

Answer:

<h2>181 440</h2>

Step-by-step explanation:

We have 9 choices for Choosing the first object

              8 choices for Choosing the 2nd object

              .

              .

              .

             3 choices for Choosing the seventh object

Therefore if we want to choose7 objects without replacement from 9 objects we have : 9×8×7×6×5×4×3 = 181 440

Also ,we can calculate it this way :

9P7 = 181 440

7 0
2 years ago
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