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2 years ago

A math class has 7 girls and 3 boys in the seventh grade and 5 girls and 5 boys in the eighth grade. The teacher randomly select

s a seventh grader and an eighth grader from the class for a competition. What is the probability that the students she selects are both boys? Write your answer as a fraction in simplest form.

Mathematics

1 answer:

Elena L [17]2 years ago

5 0

$|\Omega|=10\cdot10=100\\ |A|=3\cdot5=15\\\\ P(A)=\dfrac{15}{100}=\dfrac{3}{20}$

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Given:

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To find:

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Solution:

We know that, the volume of a cone is:

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Hayden places these four blocks into a bag. A B С He picks one block without looking. What is the probability that the block Hay

Mkey [24]

Answer:

Option D. 3/4

Step-by-step explanation:

From the question given above, we obtained the following information:

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Thus,

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Event of block with letter (nBl) = 3

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