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anonymous

  • one year ago

Your friend has $100 when he goes to the fair. He spends $10 to enter the fair and $20 on food. Rides at the fair cost $2.00 per ride. Which function can be used to determine how much money he has left over after x rides? f(x) = -2x + 70 f(x) = 2x + 70 f(x) = -2x - 70 f(x) = -30x + $100

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  1. Baby_Bear69
    • one year ago
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    Do you have any ideas?

  2. nkhanfar
    • one year ago
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    I think its c because he already has 70 dollar and you need to take it off

  3. Setsuna-Yuregeshi
    • one year ago
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    What do you think?

  4. anonymous
    • one year ago
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    Well I think it is A

  5. Setsuna-Yuregeshi
    • one year ago
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    @nkhanfar It can't be, If it was then you would end up with -$$ say he gets on two rides, thats -2 times 2 which is negative 4-70 which is -74...

  6. nkhanfar
    • one year ago
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    which one is it then

  7. anonymous
    • one year ago
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    I think it would be A

  8. Setsuna-Yuregeshi
    • one year ago
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    @FEARLESS_JOCEY, That is correct. Because he has $70, and if he gets on 4 rides, -2*4=-8+70 which is the same as $70-$8, so that is correct.

  9. anonymous
    • one year ago
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    Yay!! Thanks.

  10. Setsuna-Yuregeshi
    • one year ago
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    \[-2\times4=8 \] Then you would get \[-$8+70.00 \] And that's how much money he would have left over...

  11. Setsuna-Yuregeshi
    • one year ago
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    You're welcome...

  12. Setsuna-Yuregeshi
    • one year ago
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    Thanks for the medal!!! |dw:1436989823372:dw|

  13. anonymous
    • one year ago
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    Your welcome

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