pei fen walked a distance of 526 m.then she walked for another 5minutes at a speed of 70m/min.she took a total of 12 min to walk the entire distance.
A.find the total distance that pei fen walked
b.what was pei fen's average speed for the whole journey?
a) To find the total distance that Pei Fen walked, we need to add the distance she walked initially and the distance she walked in the next 5 minutes.
The initial distance Pei Fen walked is given as 526 m.
In the next 5 minutes, Pei Fen walked at a speed of 70 m/min. To find the distance, we can multiply the speed by the time: 70 m/min * 5 min = 350 m.
Therefore, the total distance Pei Fen walked is 526 m + 350 m = 876 m.
b) To find Pei Fen's average speed for the whole journey, we need to divide the total distance she walked by the total time it took her.
We know that Pei Fen walked a total distance of 876 m, and it took her a total time of 12 minutes.
To find her average speed, we can divide the distance by the time: 876 m / 12 min.
Thus, Pei Fen's average speed for the whole journey is 73 m/min.
total distance = 526 + 5 * 70
avg speed = total distance / 12 min