Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride. Which function can be used to determine how much money he has left over after x rides?

f (x) = 1.25x + 64

f (x) = - 16x + $80

f (x) = - 1.25x + 64

f (x) = - 1.25x - 64

Question

Mathematics

Tiara Cameron

21 May, 18:52

Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride. Which function can be used to determine how much money he has left over after x rides?

f (x) = 1.25x + 64

f (x) = - 16x + $80

f (x) = - 1.25x + 64

f (x) = - 1.25x - 64

+2

Answers (2)

Know the Answer?

Cody Nguyen · Answer 1

F (x) = - 1.25x-64 to find out how much money is left

Gaige Mccann · Answer 2

His total money is: $80

He spent $16 for the entrance of the fair and food.

80 - (4+12) = 64

subtracting $1.25 per ride = - 1.25x

Therefore gives the function:

f (x) = - 1.25x + 64

Your friend has $80 when he goes to the fair. He spends $4 to enter the fair and $12 on food. Rides at the fair cost $1.25 per ride. Which function can be used to determine how much money he has left over after x rides?f (x) = 1.25x + 64f (x) = - 16x + $80f (x) = - 1.25x + 64f (x) = - 1.25x - 64