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Math Help - help!

  1. #1
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    help!

    plz help! silvia hiked a 30-mile trail in 3 days. the first day, she hiked 50% of the total distance. the second day, she hiked 25% of the distance that remained. how many miles did she hike the third day?
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  2. #2
    Junior Member mattballer082's Avatar
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    hmm okay..

    okay, so you know the first day she did half the hike. so that is 15 miles.. the next 2 days were both 25%.. that means that on the second and third day, she split 15 miles since they are both 25%. so 7.5 miles was hiked on the third day.. does that make sense?
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  3. #3
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    Silvia hiked a 30-mile trail in 3 days. the first day, she hiked 50% of the total distance. the second day, she hiked 25% of the distance that remained. how many miles did she hike the third day?

    1st day: 50% * 30 = 15, so 30-15 = 15 left.
    2nd day: 25% of distance that REMAINED: .25 * 15 = ?

    Subtract the distance hiked on days 1 and 2 from total (30) to find distance hiked the 3rd day.
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  4. #4
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    Talking thanks

    thanks! i get it now.
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