it takes Zack 15 minutes to walk 7 1/2 blocks to the swimming pool. at this rate, how many blocks can he walk in one minute?

1/2 of a block

Step-by-step explanation:

Use proportions to solve

7.5 blocks / 15 minutes = x blocks / 1 minute

7.5=15x

x=.5

1. Multiply the numerators by the other's denominator (7.5*1 will equal to 15*x) ( * means times)

2. Isolate x by dividing 7.5=15x by 15 and you will have what x equals.