Math

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

  1. 👍 0
  2. 👎 0
  3. 👁 299
  1. 7th grade ... 7/10 boys

    8th grade ... 1/2 boys

    P(two boys selected) = 7/10 * 1/2

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra

    A math class has 3 girls and 7 boys in the seventh grade and 2 girls and 2 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that

    asked by Anneasha on June 16, 2018
  2. Math

    A science class has 3 girls and 7 boys in the seventh grade and 5 girls and 5 boysin the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability

    asked by Tay on December 12, 2016
  3. Math

    A science class has 3 girls and 3 boys in the seventh grade and 4 girls and 1 boy in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability

    asked by Brooke on February 14, 2016
  4. Math

    A math class has girls and boys in the seventh grade and girls and boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that the

    asked by MADISON on May 1, 2013
  5. Algebra

    A math class has 7 girls and 5 boys in the seventh grade and 4 girls and 4 boys in the eighth grade. The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. What is the probability that

    asked by Anesha on February 22, 2016
  1. math

    The ratio of girls to boys in a science class is 5:6. Can there be 15 boys in the class? Explain why or why not.

    asked by tyler on April 1, 2012
  2. Math

    Problem: Ms. Ashol has 20 boys and 16 girls in her mathematics class. If she chooses two students at random to work on the blackboard, what is the probability that both students chosen are girls? What I did : I added the boys and

    asked by Ed on September 24, 2019
  3. Math

    What percentage of the students who chose biking were girls? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 37.5% C. 40% D. none of these Is the answer D? Thank you

    asked by Nikita on March 31, 2015
  4. math

    Mr brown gives his class a test. The 10 girls in the class get a mean mark of 70 percent. The 15 boys in the class get a mean mark of 80 percent. Nick says that because the mean of 70 and 80 is 75 then the mean mark for the whole

    asked by supersupersuper on January 22, 2017
  5. statistics

    Please analyze the following data using the T-test for Unpaired data: A school district wants to determine if the girls are equal to boys in test scores. They took a random sample of 22 8th grade girls and 24 8th grade boys. The

    asked by Barbara on February 28, 2010
  6. algebra

    mrs. rays class has 18 girls and 9 boys. mr lis class has 16 girls and 8 boys. is the girl- boy ratio the same in each class. explain

    asked by none on June 28, 2016

You can view more similar questions or ask a new question.