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!
2 answers:
Answer:
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!
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Answer:
Time taken by Anna = x = 5.6 hours
Explanation:
Strategize. Let x = Anna's time.
We know that, d = s*t
Where,
d is distance
s is speed
t is time
Distance covered by Allen = 7 times 40 = 7*40 = 280
Distance travelled by Anna = x times 50 = 50x
Set up. 7(40)=x(50)
280 = 50x
Solve for x
x =
x = 5.6 hours
Identify. Anna's time is the unknown.
Solve. x = 5.6
Check. 7(40)=5.6(50)
280 = 280
You're right!
That's the final answer.
I hope it will help you.