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anonymous

  • one year ago

The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Robusta beans is modeled by the equation below, where A = the pounds of Arabica and R = pounds of Robusta. : 700A + 1200R = 1,000,000 If a mixture contains 1000 pounds of Arabica beans, how many pounds of Robusta beans should be in the mixture? R = ________________ pounds

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  1. Mertsj
    • one year ago
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    The other equation is A+R=1000

  2. Mertsj
    • one year ago
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    Solve the system.

  3. anonymous
    • one year ago
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    how do i do that?

  4. Mertsj
    • one year ago
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    Use substitution.

  5. anonymous
    • one year ago
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    im sorry but i didnt pay attention in class :/

  6. anonymous
    • one year ago
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    oh wait is it 250?

  7. Mertsj
    • one year ago
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    A=1000-R

  8. Mertsj
    • one year ago
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    In the equation your teacher gave you, replace A with 1000-R and solve for R

  9. anonymous
    • one year ago
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    whats R tho?

  10. anonymous
    • one year ago
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    im in a hurry can someone just pls give me the answer? lol

  11. Mertsj
    • one year ago
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    That's what you're going to find out when you solve that equation.

  12. anonymous
    • one year ago
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    ugh i cant i need to get off the car rn

  13. anonymous
    • one year ago
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    ok im going now

  14. Mertsj
    • one year ago
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    Bye and good luck.

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spraguer (Moderator)
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