Respuesta :

Answer:

= 56.7 miles per hour

Step-by-step explanation:

Step-by-step explanation:

To find the average speed for the entire journey, we need to find the entire distance   and the  total time

Entire distance = 210 miles + 130 miles = 340 miles

Total time = 3.5 hours and 2.5 hours = 6 hours

Average speed = distance/ time = 340 miles/ 6 hours

                           = 56.66666666666 miles per hour

Rounding to the nearest tenth

                             = 56.7 miles per hour

Answer:

60 miles

Step-by-step explanation:

Step 1:

210=3.5

x =1

Step 2: cross multiply

3.5×x= 210×1

3.5x=210

Step 3: divide both sides by the coefficient of x which is 3.5

3.5x/3.5=210/3.5

x=60

Answer= 60 miles