Lydia wrote 4 pages of her science report in one hour that means her rate is 4 pages/1 hour.

Since 1 hour = 60 minutes the rate per minute will be 4 pages/60 min that is 4/60 pages per minute or 1/15 pages per minute.

4/60 = 1 / 15 = 0.0067 approximately

Thus we can say that Lydia wrote 0.0067 pages per minute.