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Math Help - Matrices word problem. need urgent help :(

  1. #1
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    Wink Matrices word problem. need help :(

    hey guys. am new here and i hope this site is enough to help me in math. so as u can see am not very good at math and am having a hard questions, hope to find help here. they wana me to use gauss elimination method to solve these 2 word problems. u know matrices and stuff :P. so here we go i just need some help in getting the equations see am not very good at math . but specially the word problems. i really cant do anything at word problems. so beside the problems if any one has some advices how to generally solve a word problem i`ll be very thankful.

    First word problem.
    A chemical manufacturer wants to lease a fleet of 24 railroad tank cars with a combined carrying capacity of 420.000 gallons.. Tank cars with three different carrying capacities are available : 7.000 gallons, 14.000 gallons, and 28.000 gallons. How many each type of tank car should be leased ?.
    he also said let X1 be the number of cars with a 7.000 gallon capacity, X2 be the number of cars with 14.000 gallon capacity. and X3 be the number of cars with a 28.000 gallon capacity.








    as u can see they require me to do steps and everything in detail. and i know they might seems very easy for some of u guys but its my first semister taking math in english and i havn`t taken any math for like 2 years. and am also having a very special problem with the MATH word problem. so dont laugh at me guys and ty for ur help
    Last edited by romeroroma; May 4th 2012 at 08:16 AM.
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    Re: Matrices word problem. need urgent help :(

    forgive me if i miss placed the topic here but iam kinda of new here so if i am supposed to put this topic in somewhere else please give me the right link to put it. thanks all.
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  3. #3
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    Re: Matrices word problem. need urgent help :(

    Quote Originally Posted by romeroroma View Post
    hey guys. am new here and i hope this site is enough to help me in math. so as u can see am not very good at math and am having 2 hard questions in my assignment hope to find help here. they wana me to use gauss elimination method to solve these 2 word problems. u know matices and stuff :P. so here we go i just need some help in getting the equations see am not very good at math . but specially the word problems. i really cant do anything at word problems. so beside the problems if any one has some advices how to generally solve a word problem i`ll be very thankful.

    First word problem.
    A chemical manufacturer wants to lease a fleet of 24 railroad tank cars with a combined carrying capacity of 420.000 gallons.. Tank cars with three different carrying capacities are available : 7.000 gallons, 14.000 gallons, and 28.000 gallons. How many each type of tank car should be leased ?.
    he also said let X1 be the number of cars with a 7.000 gallon capacity, X2 be the number of cars with 14.000 gallon capacity. and X3 be the number of cars with a 28.000 gallon capacity. Attachment 23781

    And here is the second problem.
    Attachment 23782


    as u can see they require me to do steps and everything in detail. and i know they might seems very easy for some of u guys but its my first semister taking math in english and i havn`t taken any math for like 2 years. and am also having a very special problem with the MATH word problem. so dont laugh at me guys and ty for ur help
    Please note that MHF policy prohibits assistance on graded assignments.
    Thanks from romeroroma
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    Re: Matrices word problem. need urgent help :(

    but the thing now its not a graded assignment anymore. i just wana know how to solve things like this for my comming exams.
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  5. #5
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    Re: Matrices word problem. need urgent help :(

    Quote Originally Posted by romeroroma View Post
    but the thing now its not a graded assignment anymore. i just wana know how to solve things like this for my comming exams.
    Deleted attachments. Thread closed.
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