Enrique is driving to texas. he travels at 70 kilometers per hour for 2 hours, and 63 kilometers per hour for 5 hours. over the 7 hour time period what was enrique's average speed?

To solve this problem, we know that the formula for average speed is:

average speed = total distance travelled / total time

 

Now let us first calculate for the total distance travelled. Calculating:

total distance travelled = (70 km / hr) * 2 hr + (63 km / hr) * 5 hr

total distance travelled = 140 km + 315 km

total distance travelled = 455 km

 

Now for the total time:

total time = 2 hours + 5 hours

total time = 7 hours

 

Hence, the average speed is therefore:

average speed = 455 km / 7 hours

average speed = 65 km / hr

20 percentage, you can also do it on a calculator.

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