Answer:
0.98 minutes
Step-by-step explanation:
First, we have to determine how much time it took for Alaina to run one mile on the first and the second week:
First week:
12 miles → 131.25 minutes
1 mile → x
x=(131.25 minutes*1 mile)/12 miles= 10.93 minutes
Second week:
12 miles → 119.5 minutes
x= (119.5 minutes*1 mile) /12 miles= 9.95 minutes
Now, we have to find the difference between the time it took to run 1 mile in the first and the second week:
10.93-9.95= 0.98 minutes
She run 0.98 minutes faster in the second week.
9/2
4.5 = 4 1/2 = 9/2
Answer:4
×1 = 3 : 8.
×2 = 6 : 16
×3 = 9 : 24
×4 = 12 : 32