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anonymous

  • 5 years ago

can anyone help me set up the equation of: Cashews are priced at $5.75 per pound. Peanuts are priced at $3.25 per pound. Mixed together to total 80 pounds for $4.00 per pound. How many pounds of each do I need?

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  1. anonymous
    • 5 years ago
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    x+y=80 3.25x+5.75y=4.00 Pretty sure that is right just use the elimination or substitution methode to figure it out

  2. anonymous
    • 5 years ago
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    Let me know if it works out for you i am wondering myself now

  3. anonymous
    • 5 years ago
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    my class is not to substitution or elimination. i was thinking: 3.25x+5.75(x-80)=320?

  4. anonymous
    • 5 years ago
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    i don't know how you would solve that if you are not using one of those methodes. to me it looks like it should be a set of equations in multi varible form. let me think of this for a sec.

  5. anonymous
    • 5 years ago
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    I have tutoring before class tomorrow, I was just trying to figure it out before then. No worries. thank you.

  6. amistre64
    • 5 years ago
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    its helpful to use variables that represent the actual stuff :) c for Cashew and p for peanuts helps you to keep track of them better ;) other than that you did a great job with it

  7. amistre64
    • 5 years ago
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    c+p=80 p(3.25)+c(5.75)=(80)4.00

  8. amistre64
    • 5 years ago
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    solve for one variable in the first equation: c = 80-p and substitute it into the second.... p(3.25)+(80-p)(5.75)=(80)4.00 do the math, and solve for p..

  9. amistre64
    • 5 years ago
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    once you know a solid value for "p" use it in the c = 80-p to find c.

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