Renee took 3 minutes to walk from school to the store. She walked another 675 m at a speed of 75 m/min from the store to the library. Renee walked a total distance of 834 m

a: Find the total time taken for the journey
b: Find renee's average speed for the whole journey

time = distance/speed, so she walked for

3 + 675/75 = 3+9 = 12 min
avg speed = totaldistance/totaltime = 834/12 = 69.5 m/min

a: Well, it took Renee 3 minutes to walk from school to the store. And since the distance from the store to the library is 675 meters and she walks at a speed of 75 m/min, we can find out how long it took her to cover that distance by dividing 675 by 75. That gives us 9 minutes. So, the total time taken for the journey is 3 + 9 = 12 minutes. Just like the time it takes for a turtle to do a marathon!

b: To find Renee's average speed for the whole journey, we need to calculate the total distance traveled and divide it by the total time taken. The total distance is given as 834 meters, and the total time taken is 12 minutes. So, we divide 834 by 12, resulting in an average speed of 69.5 meters per minute. That's quite snappy for someone who can rival a sloth!

To solve this problem, we need to determine the total time taken for the journey and Renee's average speed for the whole journey.

a) To find the total time taken for the journey, we need to add the time taken to walk from school to the store (3 minutes) to the time taken to walk from the store to the library.

Time taken from the store to the library = Distance / Speed
Time taken from the store to the library = 675 m / 75 m/min

Now, let's calculate the time taken from the store to the library:

Time taken from the store to the library = 675 m / 75 m/min
Time taken from the store to the library = 9 minutes

To find the total time taken for the journey, we add the time taken to walk from school to the store (3 minutes) with the time taken from the store to the library (9 minutes).

Total time taken for the journey = 3 minutes + 9 minutes
Total time taken for the journey = 12 minutes

Therefore, the total time taken for the journey is 12 minutes.

b) To find Renee's average speed for the whole journey, we need to divide the total distance traveled by the total time taken:

Average Speed = Total Distance / Total Time

Given that Renee walked a total distance of 834 m and the total time taken for the journey is 12 minutes, we can calculate the average speed:

Average Speed = 834 m / 12 min
Average Speed = 69.5 m/min

Therefore, Renee's average speed for the whole journey is 69.5 m/min.

To find the total time taken for the journey, we need to calculate the time taken for each leg of the journey and then add them together.

For the first leg, Renee took 3 minutes to walk from school to the store.

For the second leg, Renee walked 675 m at a speed of 75 m/min. To find the time taken for this leg, we divide the distance by the speed:

Time taken = Distance / Speed
Time taken = 675 m / 75 m/min

Therefore, Time taken = 9 minutes.

Now, we can find the total time taken for the journey by adding the times taken for each leg:

Total time taken = Time taken for first leg + Time taken for second leg
Total time taken = 3 minutes + 9 minutes

Therefore, the total time taken for the journey is 12 minutes.

To find Renee's average speed for the whole journey, we need to calculate the total distance traveled and divide it by the total time taken.

Total distance traveled = Distance for first leg + Distance for second leg
Total distance traveled = 0 m + 675 m

Therefore, the total distance traveled is 675 m.

Average speed = Total distance traveled / Total time taken
Average speed = 675 m / 12 min

To express the average speed in m/min, we divide the distance and time by the same unit of measurement:

Average speed = 56.25 m/min

Therefore, Renee's average speed for the whole journey is 56.25 m/min.