Answer:
Hi!
The answer is 140 kilometers.
Step-by-step explanation:
You can solve this problem using Rule of three:
1 hour ---> 40km
3.5 hours ----> x
Now you have to multiply 3.5 hours by 40kms, then divide the result for 1 hour.
[tex] x = \frac{3.5 hour * 40km}{1hour} [/tex] //hour divided by hour is 1.
[tex] x = 140km [/tex]
