Blew upper radiator hose!!!

So I was coming back from New York and the upper radiator hose blew, got a cut in it actually from it being swollen and old it was sitting on the top pulley, pulled into a Walmart at 630 am near Richmond va. Had the spare hose but had to put in about 3/4 gal of that Prestone 50/50 mix any make model engine add to any color stuff. Will I be alrite to run this stuff for a little while? Don't have the spare $ to completely drain flush and refill the system at the moment. Thanks in advance guys