## 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 • This Question is Closed 1. Baby_Bear69 Do you have any ideas? 2. nkhanfar I think its c because he already has 70 dollar and you need to take it off 3. anonymous What do you think? 4. anonymous Well I think it is A 5. anonymous @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 which one is it then 7. anonymous I think it would be A 8. anonymous @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

Yay!! Thanks.

10. anonymous

$-2\times4=8$ Then you would get $-8+70.00$ And that's how much money he would have left over...

11. anonymous

You're welcome...

12. anonymous

Thanks for the medal!!! |dw:1436989823372:dw|

13. anonymous