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_TylerTaughtMe Group Title

Part 1: Write an expression for the following real-world situation. If Mr. Jackson earns $1000 for every used car he sells and $2000 for every new car he sells, how much would he make if he sold "u" used cars and "n" new cars? Part 2: Write a real-world situation of your own and a VARIABLE expression to go with it.

  • 2 years ago
  • 2 years ago

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  1. tjones89 Group Title
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    for this problem we'll start by making two equations, one that represents money made from used cars, and another that represents money made from new cars

    • 2 years ago
  2. _TylerTaughtMe Group Title
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    Ok

    • 2 years ago
  3. tjones89 Group Title
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    so for every used car that Mr J sells he makes $1000, so if he sells two used cars he will make two times that amount, if he sells three he will make three TIMES that amount, so if he sells u amount of cars, he will make u times $1000

    • 2 years ago
  4. tjones89 Group Title
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    so our first equation looks like this (number of used cars) times $1000 = amount of money made

    • 2 years ago
  5. tjones89 Group Title
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    making sense so far?

    • 2 years ago
  6. _TylerTaughtMe Group Title
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    Yess

    • 2 years ago
  7. tjones89 Group Title
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    good so our second equation is the same thing but with new cars, the number of new cars times $2000 equals the amount of money he makes (number of new cars) x $2000 = amount of money made from new cars

    • 2 years ago
  8. tjones89 Group Title
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    so we have two equations \[u \times $1000 = m1\] and \[n \times $2000 = m2\]

    • 2 years ago
  9. tjones89 Group Title
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    you see ive inserted variables, that make sense?

    • 2 years ago
  10. _TylerTaughtMe Group Title
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    Yess It Makes Sense

    • 2 years ago
  11. tjones89 Group Title
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    ok so now we need to make a third equation, m1 + m2 = T (amount of money from used cars) + (amount from new cars) = (total amount of money)

    • 2 years ago
  12. tjones89 Group Title
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    we then substitute the first two equations into the third to make (u x 1000) + (n x 2000) = T

    • 2 years ago
  13. tjones89 Group Title
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    and that's your equation, does that make sense?

    • 2 years ago
  14. _TylerTaughtMe Group Title
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    Yea It Dose !

    • 2 years ago
  15. tjones89 Group Title
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    yay

    • 2 years ago
  16. tjones89 Group Title
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    do you want help with the next part?

    • 2 years ago
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