Aboat goes 3/4 hours with a speed of 8 mph and 1/3 hours with a speed of 12 mph. what distance did the boat cover in all this time?

10 miles

Step-by-step explanation:

Given: Boat goes hours with 8 mph       (i)

           Boat goes hours with 12 mph       (ii)

Now, lets find out distance separately to get total distance.

Formula for finding distance is

D=

D=   (i)

D=

∴ D1= 6 miles (i)

D= (ii)

∴D2= 4 miles  (ii)

To find total distance, we will add d1 and d2

Total distance =

∴ Total distance =

= 10 miles is the total distance covered by boat in all this time.

answer: 5

step-by-step explanation: