Question

3) Barbara can walk 3,200 meters in 24 minutes. How far can she walk in 3

minutes? (journal pg. 49)
+
320 meters
400 meters
640 meters
720 meters

Answer 1

400 meters

Explanation:

We know that Barbara can walk 3,200 meters in 24 minutes . And are being asked to see how far she can walk in 3 minutes.

Create the unit rate. Since Barbara can walk 3,200 in 24 minutes and we're trying to figure out how many meters she walks in 3 mintues, make the meters "M"

`(3200)/(24) = (M)/(3)`

Let's do something that can make 24 mintues go to 3 minutes, this would be dividing 24 by 8, do the same with the numerator :

`(3200/8)/(24/8)`

`(400)/(3)`

Therefore Barbara can walk 400 meters in 3 minutes,