Mr. anderson drove 168 miles in 3 and 1/2 hours. he then drove the next 2 and 1/4 hours at a rate of 5 miles an hour faster than the first rate. how many miles did mr. anderson drive during the 5 and 3/4 hours?
answer asap for brainliest answer and !

Speed 1 = 168 miles / 2.25 hours = 48 miles/hour
Speed 2 = 48 + 5 miles/hour = 53 miles/hour
Distance 1 = 168 miles
Distance 2 = 2.25 hours X 53 miles/hour =119.25 miles
Total Distance = Distance 1 + Distance 2 = 168 + 119.25 miles = 287.25 miles
Or 287 and 1/4 miles

Idon’t know how to do that