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anonymous

  • 5 years ago

Help find the x and y intercepts 3x + 5y = 0 5x + 3y = 16

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  1. amistre64
    • 5 years ago
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    x y intercepts? or x and y that they have in common?

  2. anonymous
    • 5 years ago
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    What each have in common

  3. amistre64
    • 5 years ago
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    does it matter how you solve it?

  4. anonymous
    • 5 years ago
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    It is a system

  5. anonymous
    • 5 years ago
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    solved by addition

  6. amistre64
    • 5 years ago
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    3x + 5y = 0 [-5] 5x + 3y = 16 [3] -15x -25y = 0 15x + 9y = 48 ---------------- -16y = 48 y = -3

  7. amistre64
    • 5 years ago
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    i think addition is the same thing as elimination....right?

  8. anonymous
    • 5 years ago
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    What I did was this (-3)3x + 5y = 0 (5)5x + 3y = 16 -9x - 15x = 0 25x + 15x = 80 16/16 \[\times\] 80/16 I got x = 5

  9. amistre64
    • 5 years ago
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    3x + 5y = 0 [-3] 5x + 3y = 16 [5] -9x -15y = 0 25x +15y = 80 -------------- 16x = 80 x = 5

  10. anonymous
    • 5 years ago
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    Can I find Y by using 3x + 5y = 0 ?

  11. amistre64
    • 5 years ago
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    once you find a solid value for a variable; you can just use it in an equation to find the other...

  12. anonymous
    • 5 years ago
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    I got +3 when I used 3x + 5y = 0

  13. amistre64
    • 5 years ago
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    no you dint lol

  14. amistre64
    • 5 years ago
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    3x + 5y = 0 3(5) + 5y = 0 15 +5y = 0 5y = -15 y = -15/5 y = -3

  15. anonymous
    • 5 years ago
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    Whoops! I forgot to add the - sign! Thanks :D

  16. anonymous
    • 5 years ago
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    I needed to send you my question so you can understand it better Complete the sales receipt below by finding the prices, the subtotal, the sales tax, and the total. McCOY'S FURNITURE 1 @ 490.00 SOFA 2 @ 60.00 END TABLE 1 @ 360.00

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