Answer:
1/2 of a block
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.