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Math Help - matrix algebra

  1. #1
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    matrix algebra

    hi, i'm having some trouble coming up with the 2nd function for this word problem:



    a manufacturer makes 2 products, a and b. for each unit of a sold, the profit is 8 dollars, and for each of b, the profit is 11 dollars. it's been found that 25% more of a can be sold than of b. next yr the manufacturer wants a total profit of $42000. how many units of each product must be sold?

    i found the profit function, but not sure how to go about for the 25% more of a than b part. thanks!
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by finalfantasy View Post
    hi, i'm having some trouble coming up with the 2nd function for this word problem:



    a manufacturer makes 2 products, a and b. for each unit of a sold, the profit is 8 dollars, and for each of b, the profit is 11 dollars. it's been found that 25% more of a can be sold than of b. next yr the manufacturer wants a total profit of $42000. how many units of each product must be sold?

    i found the profit function, but not sure how to go about for the 25% more of a than b part. thanks!
    that last piece of information is to give you a relationship between A and B

    if you call the number of units of product A sold, a
    and the number of units of product B sold, b

    then this says, a = 1.25b

    can you continue?
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