A die is rolled 200 times with the following results. Outcome Frequency 36 44 56 30 38 32 20 What is the theoretical probability of the given event? Pleven)
In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.
Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?