Question 803864: My son has been given a 5th grade project involving distance and speed. He has chosen 5 cities and has already found out the distance between the cities. However, he now has to find out how long it will take him to get to those cities going a rate of speed @ 75 mph, 50 mph, and 12 mph.
Questions:
1. What is the driving time traveling 29.1 miles @ 75 mph, 50 mph, and 12 mph?
2. What is the driving time traveling 523.1 miles @ 75 mph, 50 mph, and 12 mph?
3. What is the driving time traveling 257.9 miles @ 75 mph, 50 mph, and 12 mph?
4. What is the driving time traveling 55.8 miles @ 75 mph, 50 mph, and 12 mph?
5. What is the driving time traveling 744.9 miles @ 75 mph, 50 mph, and 12 mph?
Thanks !!!
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! My son has been given a 5th grade project involving distance and speed. He has chosen 5 cities and has already found out the distance between the cities. However, he now has to find out how long it will take him to get to those cities going a rate of speed @ 75 mph, 50 mph, and 12 mph.
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For each of these rate-distance combinations
time = distance/rate
Questions:
1. What is the driving time traveling 29.1 miles @ 75 mph, 50 mph, and 12 mph?
at 75 mph:: time = 29.1/75 = 0.3880 hrs
= 0.3880*60
= 23.28 minutes
= 23+0.28*60
= 23 min 16.8 seconds
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Do the same for 50 mph and 12 mph
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The following problems require the same procedure.
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Cheers,
Stan H.
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2. What is the driving time traveling 523.1 miles @ 75 mph, 50 mph, and 12 mph?
3. What is the driving time traveling 257.9 miles @ 75 mph, 50 mph, and 12 mph?
4. What is the driving time traveling 55.8 miles @ 75 mph, 50 mph, and 12 mph?
5. What is the driving time traveling 744.9 miles @ 75 mph, 50 mph, and 12 mph?
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