Adog runs 54km in just 3days ,it runs 2km more each day . how many kilometers does it run for the first 2 days?

Answer

34 Km

Explanation

Assuming that the dog ran x Km the first day, 

1st day = x km

2nd day = (x+2)

3rd day = (x+2)+2 = (x+4) Km

So we have,

x + (x+2) + (x+4) = 54

3x + 6 =54

3x = 54-6

3x = 48

x = 16 Km.

∴  

1st day = 16 Km

2nd day = 16 + 2 = 18

Total distance for the first 2 days = 16 + 18 = 34 Km

the answer is 31.27mph

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: