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ebydaqueen17

  • 3 years ago

Pola wants 3 oz of a 20% solution. she has only 5% and 30% available. how many oz of each should she mix to get what she wants?

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  1. Algebraic!
    • 3 years ago
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    x+y =3 oz .05*x + .3*y = .2*3

  2. ebydaqueen17
    • 3 years ago
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    could you please solve the equations..i dont know how to....

  3. ebydaqueen17
    • 3 years ago
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    and why did u multiply .2 by 3

  4. Algebraic!
    • 3 years ago
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    what class are you taking?

  5. cwrw238
    • 3 years ago
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    Algebraic multiplied 0.2 by 3 because thats the amount of substance in 3 oz of solution (0.2 = 20%)

  6. ebydaqueen17
    • 3 years ago
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    math 130- intermediate algebra

  7. Algebraic!
    • 3 years ago
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    should be no problem for you to solve. very simple substitution.

  8. ebydaqueen17
    • 3 years ago
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    ok. thnks

  9. ebydaqueen17
    • 3 years ago
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    when pppl give yu best responses yur smart score goes up huh?

  10. Algebraic!
    • 3 years ago
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    yes.

  11. ebydaqueen17
    • 3 years ago
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    i multiplied the top equation by -.3 so that i could cancel out the y value and after i solved i got x= -.21

  12. Algebraic!
    • 3 years ago
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    solve for either x or y, your choice: x+y =3 sub.s into: .05*x + .3*y = .2*3

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