A boy walks at a speed of 4 kmph. How much time does he take to walk a distance of 20 km? Show your work!

5 hours

Step-by-step explanation:

The relationship for distance, time, and speed is: , where d is the distance, s is the speed, and t is the time.

We are given the boy's speed is 4 kmph, so s = 4. We also know the distance is 20 km, so d = 20.

Then, rearranging the above formula, we have . We plug in the values of d and s into the equation to find t:

Thus, the answer is 5 hours.

Hope this helps!

step-by-step explanation:

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.