Respuesta :
720/1 = 1800/x.....720 miles to 1 hr = 1800 miles to x hrs
cross multiply
(720)(x) = (1)(1800)
720x = 1800
x = 1800/720
x = 2.5 (or 2 1/2) hrs <==
cross multiply
(720)(x) = (1)(1800)
720x = 1800
x = 1800/720
x = 2.5 (or 2 1/2) hrs <==
It will take 2 hours and 30 minutes because divide 720 miles from 1800 miles