Question

Calculus help please?

Answer 1

I have my derivative: (48 (t-50))/25

Answer 2

I don't have the second part. I've substituted for the minutes already

Answer 3

for second bit, solve for d/dt = 35

Answer 4

I'm a little lost with that?

Answer 5

you should get 3275/48

Answer 6

35 = 48(t-50)/25
25*35=48(t-50)
25*35/48=t-50
25*35/48+50=t

Answer 7

I thought that too, but it's not.