What is Thuy’s error? Thuy should have written the ratio as StartFraction 30 inches over 3 inches EndFraction.
Thuy should have written the ratio as StartFraction 30 inches over 39 inches EndFraction.
Thuy should have divided both numbers by 6.
Thuy should have divided both numbers by 13.

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

N- 3 is the answer