Results 1 to 3 of 3

Thread: word problem

  1. Apr 15th 2008, 06:36 PM #1
    BeBeMala
    BeBeMala is offline
    Junior Member
    Joined
    Apr 2008
    Posts
    73

    Question word problem

    an average adults heart beats 8 times every 6 seconds,whereas a new baby's heart beats 7 times every 3 seconds.determine whether these rates are the same....
    Follow Math Help Forum on Facebook and Google+
  2. Apr 15th 2008, 06:37 PM #2
    topsquark
    topsquark is offline
    Forum Admin topsquark's Avatar
    Joined
    Jan 2006
    From
    Wellsville, NY
    Posts
    11,019
    Thanks
    686
    Awards
    1
    MHF Donor
    Quote Originally Posted by BeBeMala View Post
    an average adults heart beats 8 times every 6 seconds,whereas a new baby's heart beats 7 times every 3 seconds.determine whether these rates are the same....
    \frac{8~beats}{6~s} = 1.3333~beats/s

    \frac{7~beats}{3~s} = 2.333333~beats/s

    So no, they aren't the same.

    -Dan
    Follow Math Help Forum on Facebook and Google+
  3. Apr 15th 2008, 06:38 PM #3
    Mathstud28
    Mathstud28 is offline
    MHF Contributor Mathstud28's Avatar
    Joined
    Mar 2008
    From
    Pennsylvania
    Posts
    3,641

    Ok

    Quote Originally Posted by BeBeMala View Post
    an average adults heart beats 8 times every 6 seconds,whereas a new baby's heart beats 7 times every 3 seconds.determine whether these rates are the same....
    If we reduce both and they are the same they whould equal to eachother and by reducing we get \frac{4}{3}\ne{\frac{7}{3}}..so no
    Follow Math Help Forum on Facebook and Google+
« Working backwards | word problem »

Similar Math Help Forum Discussions

  1. word problem - the snow plough problem?
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: Oct 13th 2011, 01:02 PM
  2. Weird Trig Angle of Elevation problem + Azimuth Word Problem
    Posted in the Trigonometry Forum
    Replies: 3
    Last Post: Jan 2nd 2011, 08:20 PM
  3. 1 Word problem and 1 function problem
    Posted in the Algebra Forum
    Replies: 8
    Last Post: Apr 21st 2010, 08:01 AM
  4. Volume Word Problem (geometry-type problem for physics)
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: Jan 10th 2009, 05:49 AM

Search Tags


/mathhelpforum @mathhelpforum