A youth ice hockey game has three 20-minute periods. Collin plays 12 minutes each period. Which ratio represents Collin's playing time to the total number of minutes of playing time possible. A: 1 to 4 . B: 3 to 20 . C:1 to 5 . D:3 to 5

Subtracting is the opposite of adding

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.