Answer:
At least 1.72 miles per day.
Step-by-step explanation:
Given: Goal of running is at least 50 miles in a month.
Andrea have already run 7 miles.
Days left in the month is 25.
As given, Andrea have already run 7 miles.
∴ Andrea need to run this month= ![50\ miles - 7\ miles= 43\ miles](https://tex.z-dn.net/?f=50%5C%20miles%20-%207%5C%20miles%3D%2043%5C%20miles)
Days remaining this month is 25.
Now, finding miles need to run each day to meet her goal.
Miles need to run each day= ![\frac{remaining\ miles}{remaining\ days}](https://tex.z-dn.net/?f=%5Cfrac%7Bremaining%5C%20miles%7D%7Bremaining%5C%20days%7D)
⇒ Miles need to run each day= ![\frac{43}{25} = 1.72\ miles](https://tex.z-dn.net/?f=%5Cfrac%7B43%7D%7B25%7D%20%3D%201.72%5C%20miles)
∴ Andrea need to run at least 1.72 miles to meet her goal this month.