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Leni [432]
3 years ago
9

Two students are chosen at random from a class of 30. what is the probability that both you and your best friend are chosen?

Mathematics
2 answers:
Sladkaya [172]3 years ago
6 0
Hey there!

\dfrac{1}{30}  \times  \dfrac{1}{29}  \\  =  \dfrac{1}{870}

Answer is 1/870, or in decimal form 0.0011.

Hope this helps. - M
Salsk061 [2.6K]3 years ago
5 0
So only 2 or being chosen. 

The chance of you being chosen is 1 out of 30 

And on the second choice, the chance of you being chosen is 1 out of 29

so we multiply them to get the answer:

(1/30)(1/29) = 

1/870

The chance that you and your bestie are chosen is 1 out of 870 possibilities. 




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The only true statement is <em>"the orange 3 on the right is 1/10 of the value of the blue 3 on the left"</em>

<em />

This question bothers on place values.

<em />

Given the decimal value 89.033, the place value of the blue 3 on the left is the hundredth place (1/100) while the place value of the orange 3 is in the thousandth place(1/1000).

We need to<u> check which of the statement is correct. </u>

For the first option, the blue 3 on the left is 300 times the value of the orange 3 on the right;

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Since 0.01≠0.3, hence the first option is wrong

For the second option, the blue 3 on the left is 100 times the value of the orange 3 on the right;

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0.01≠0.1, hence the second option is wrong.

The blue 3 on the left is equivalent to the orange 3 on the right is also wrong since they are positioned in a different place

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Hence the only true statement is <em>"the orange 3 on the right is 1/10 of the value of the blue 3 on the left"</em>

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2 years ago
What two numbers add up to 9 and multiply to -90?
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The numbers are 15 and - 6 ;
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