If 5 mi=8km, about how many miles would be equal to 50 km? explain

If 5 miles is the same as 8 kilometers, 50 kilometers would be the same as 31.25 miles. This is because the unit rate of 5 miles: 8 kilometers is 0. 625:1. This then allows us to multiply by 50 over 50 to get us 31.25 miles: 50 kilometers.