The distance between Carly's house and her friend's house is 70 meters. If Carly walks to her friend's house and back, how many centimeters does she walk? Explain.

14000 cm

Step-by-step explanation:

The distance between Carly's house and her friend's house is 70 meters.

If Carly walks to her friend's house and back, it is the same thing as saying that she walked a distance of 70 m twice.

The total distance she walked will therefore be:

70 + 70 = 140 m

The answer requires that it is in centimeters (cm).

Converting 140 m to centimetre:

1 m = 100 cm

140 m = 140 * 100 cm = 14000 cm

She walked a total of 14000 cm.