CynPerry CynPerry

22-03-2020
Mathematics

contestada

A math class has 4 girls and 4 boys in the seventh grade and 7 girls and 3 boys in the eighth grade. The teacher randomly selects a seventh grade and an eighth grader from the class for a competition. What is the probability that the students she selects are both girls?

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Аноним Аноним

22-03-2020

Answer:

1 1/5

Step-by-step explanation:

4 g 4 b (8)

7 g 3 b (10)

1/2 for seventh, 7/10 for eighth

Change 1/2 to 5/10 to be able to add.

7/10 + 5/10 = 12/10 --> 1 1/5

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