How long will this serpentine belt last?

Its on a 2010 ford fusion. There's a big rip in it there's about 1/4 inch width left in one spot. How long will it last before breaking? I need to go 3 miles

I'd take it off and with you to the auto parts store. If you need to drive you'll likely make it but that way you won't know if any of the pulley bearings are bad. Take the belt off and spin all the pulleys to make sure none are dry or gritty feeling. You should also check them for play.

It won't last. Get a car that isn't a PoS.

NOT very long

I wouldn't risk it, replace it As soon as possible, one belt runs the whole system it fails, you will have much bigger problems.

The engine will last for about 1 minute if that belt breaks.

Bbj

The belt might last you the 3 miles, but even if it breaks on you, the engine can still run for a very short while. You will just have no power steering, the electrical system will draw off the battery, and the coolant will not circulate through the engine which means the engine will overheat in a short time, but you should still be able to limp the car 3 miles with all that considered, unless the engine just stops running altogether, then you'll have to get out and push.

Might make it - might not

Nobody can give a definitive answer.It may or may not.Other factors come into play e.g.Sudden acceleration.high speeds etc
if we can get where we need to without using car? ( taxi? Lift?) then why risk it packing up at side of road.
your choice end of day. At least you have checked under hood but why? Was it noisy? Odds are imminent failure but exact time or distance nobody can forecast.