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August 16th, 2012, 09:50 AM   #1
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Distance, rate, and time help.

"It took Phyllis 2 hours and 30 minutes to ride to Antonio's house at 16 miles per hour. How far is it between Phyllis's house and Antonio's house?"
I understand that if it was 2 hrs * 16, but this time it's 30 minutes added. How do I solve this problem?
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August 16th, 2012, 10:50 AM   #2
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Re: Distance, rate, and time help.

take 30 minutes as half an hour because 30/60=0.5

So it took him 2.5 hours total for the ride, therefore you just multiply time by speed to get distance, which is 2.5x16=40 miles

If it is some other minutes, for example: 12, you just convert it into hours and use the formula
12/60=0.2 hours then 2.2x16=35.2 miles
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August 16th, 2012, 12:38 PM   #3
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Re: Distance, rate, and time help.

Larry flew to Peter's house. It is 21 miles from Larry's house to Peter's house. It took Larry 1 hour and 30 minutes to get there. How fast did Larry go? Something I keep doing wrong on this equation. I mean, here's what I do:

15/60 = 2.5 + 1 = 2.6 2.6*21 = wrong..
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August 16th, 2012, 12:46 PM   #4
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Re: Distance, rate, and time help.

Speed is distance divided by time:

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