You are on a road trip to San Francisco. You drove 200 miles in 3 hours, and then stopped for lunch for 30 minutes. After lunch, you traveled 150 miles in an hour and a half. What was your average speed
for this trip? SHOW YOUR WORK!
a. Calculate the average speed including the time spent for lunch.
b. Calculate the average speed without the lunch stop

Explanation:

a)

Average speed is total distance over change in time.

So

total distance=(200+150)

=350

total time=(3+0.5+1.5)

=5

350 km/5 hours

70km/hour

Therefore:

70 km/h is the average speed

b)

total distance=(200+150)

=350

total time=(3+1.5)

=4.5

350/4.5

=approx. 77.77 km/hour

Therefore:

77.77/hour is the average speed

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answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation: