Question

1. the first russian space satellite was called sputnik. it orbited earth at a speed of 29,000 kilometers per hour. how many hectometers did it travel in one day? 15. jorge took a speed - reading class last saturday from 9 a.m. to 4 p.m. he learned that he could speed read 330 pages of a novel in one hour with good comprehension. how many pages does he speed read in 225 minutes?

Explanation:

Step1: Convert speed to hectometers per hour

Since 1 kilometer = 10 hectometers, the speed of 29000 kilometers per hour is $29000\times10 = 290000$ hectometers per hour.

Step2: Calculate distance in a day

There are 24 hours in a day. So the distance traveled in a day is $290000\times24=6960000$ hectometers.

Step3: Convert minutes to hours for second - part

Since 1 hour = 60 minutes, 225 minutes is $\frac{225}{60}=\frac{15}{4}$ hours.

Step4: Calculate number of pages read

If Jorge can read 330 pages per hour, then in $\frac{15}{4}$ hours, he can read $330\times\frac{15}{4}=\frac{4950}{4} = 1237.5$ pages.

Answer:

1. 6960000 hectometers
2. 1237.5 pages