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puertoricangirl96

  • 4 years ago

a+s=150 45a+28.50s=4770 How do I solve this? help please!!!

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  1. hoblos
    • 4 years ago
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    a+s=150 ----> a=150-s replace this in the second equation and solve for s

  2. liliy
    • 4 years ago
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    follow @hoblos and then in ur long equation do: 45(150-s) +28.50s=4770.

  3. cwrw238
    • 4 years ago
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    you can use elimination method by first multiplying ist equation by 45: 45a + 45s = 6750 45a + 28.5s = 4770 subtract to eliminate a

  4. John4m2
    • 4 years ago
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    consider a= 150 - s substitute the value of a in the second eqn 45 (150- s) + 28.5s =4770 6750 - 45s + 28.5s=4770 -16.5s =-1980 s =120 substitute the value of c in any eqn take a + s =150 a + 120=150 a =30 therefore a =30 and s=120

  5. puertoricangirl96
    • 4 years ago
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    thanks a bunch

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