What is the unit rate?
75 miles in 1 1/2 hours
find the unit rate
75/(1 1/2)=75/(3/2)=(75)(2/3)/(3/2)(2/3)
=(75)(2/3)/1
=(75)(2/3)
(75)(2/3)=(75*2)/3
=150/3
=50 miles/hour
you can also simplify:(75/3)*2=25*2=50
you can also change 1 1/2 to 1.5 which gives 75 miles/1.5 hours
75 miles/1.5 hours=750 miles/15 hours=50 miles/hour