Kim earns $30 for babysitting on Friday nights. She makes an average of $1.25 in tips per hour. Write the function of Kim's earnings, and solve for how much she would make after 3 hours.

Question

anonymous · Answer

- Firstly, we must assume that she makes the same amount of money no matter how much time she spends babysitting.

So we have a flat rate of $30 + ($1.5 per hour)
I we let x be the number of hours, do you think that you can finish off the function, with the notation f(x)?

anonymous · Answer

uh would the answer be y = 30x + 1.25; $91.25 @Riddellikins

anonymous · Answer

Close, it's the 1.25 that is per hour so you must multiply that by x:

f(x) = 1.25x + 30

That should be correct