1 km = 1,000 m
Since Paulie and Joanne both ran 10 kilometers in all, you would multiply that number by 1,000 because there are 1,000 meters in 1 kilometer (as shown above), which would equal 10,000.
10 • 1,000 = 10,000
Since they both ran 10 kilometers in all, you would divide the 10,000 by 2.
10,000 ÷ 2 = 5,000
Now, since Joanne is the over-achiever she ran 400 more meters than Paulie, you would add 400 to Joanne's 5,000 and subtract 400 from Paulie's 5,000 to keep the overall total still equal to 10,000.
Joanne: 5,000 + 400 = 5,400
Paulie: 5,000 - 400 = 4,600
To check, you would add both their 5,400 and 4,600 meters to make sure they still equal 10,000.
5,400 + 4,600 = 10,000
Answer:
Paulie = 4,600 m or 4.6 km
Joanne = 5,400 m or 5.4km
