2 2/3 or 2.6666… minutes or 160 seconds. Use the formula Distance = rate x time to set up the problem as 2=45x. Divide both sides by 45 and you will get 0.044444… Multiply that answer by 60 to get minutes for by 3,600 to get seconds.
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About an hour and a half.
About 20 minutes at a constant 45 mph
Distance = Rate * TimeAlgebraically manipulated,Time = Distance/RateTime = 90 miles/45 mph= 2 hours========
18 minutes 45 seconds.
If you are going 45 mph, then you divide 45 by 9 45/9 = 5 Now we mutiply that by n to get to 60. 5 * 12 = 60 The answer is 12.