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mmbuckaroos

I need help on setting up an equation to a word problem please

  • 2 years ago
  • 2 years ago

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  1. atjari
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    Where is the problem?

    • 2 years ago
  2. fred104
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    Marcus has 1 apple, after I gave him some he had 5. How many did I give him? (Answer: 4)

    • 2 years ago
  3. mmbuckaroos
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    A girl is currently 5 years older than her younger brother and 3 years younger than her older brother. Two years from the current time, the product of the ages of the brothers will be twelve times the age of the girl. What is the current age of the older brother?

    • 2 years ago
  4. fred104
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    Sorry I misunderstood

    • 2 years ago
  5. atjari
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    Let the current age of the girl be x. Then the current age of her younger bro will b x-5. The current age of her older bro will b x+3 After 2 years girl's age will be x+2 The age of her younger bro after 2 years will b x-5+2=x-3 The age of her older bro after 2 years will b x+3+2=x+5 (x-3)(x+5)=12(x+2) x^2+2x-15=12x+24 x^2-10x-39=0 (x-13)(x+3)=0 x=13/x=-3 Since age cannot b negativ x=13. The current age of her older bro will b 16.

    • 2 years ago
  6. mmbuckaroos
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    Thank you! I see where I made my mistake so this helps!

    • 2 years ago
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