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Math Help - My homework for pre calc class. Its not calc though.

  1. #1
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    My homework for pre calc class. Its not calc though.

    I have two problems that i need to help solving.
    Can someone solve them for me and show the work?


    The Mathelte team is 37.5% female. If no additional boys join the team, what is the smallest number of girls who can join the team to raise the percentage to exactly 45%?


    And the second problem is


    The probability that statement P is true is 3/7, and the probability that statement Q is true is 5/12. Determine the probability that P --> Q is true.


    Thanks for the help.
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  2. #2
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    Re: My homework for pre calc class. Its not calc though.

    Quote Originally Posted by nngk2 View Post
    I have two problems that i need to help solving.
    Can someone solve them for me and show the work?


    The Mathelte team is 37.5% female. If no additional boys join the team, what is the smallest number of girls who can join the team to raise the percentage to exactly 45%?
    Suppose there are N people on the team. Then 0.375N are female. What is the smallest value of N that will make that an integer?

    If x girls joint the team there will be 0.375N+ x girls and N+ x people. If there are enough to make the number of girls 45, then we must have 0.375N+ x= 0.45(N+ x). Multiply the right side and solve for x. Remember that all those numbers must be integers.


    And the second problem is


    The probability that statement P is true is 3/7, and the probability that statement Q is true is 5/12. Determine the probability that P --> Q is true.


    Thanks for the help.[/QUOTE]
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  3. #3
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    Re: My homework for pre calc class. Its not calc though.

    Does N=8? I still can't solve it
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