Results 1 to 2 of 2

Math Help - Problem Solving questions

  1. #1
    capo-status
    Guest

    Problem Solving questions

    Hey

    I got a couple of questions that I tried really hard to do but I still think it's wrong.

    Here are the questions,

    1. "If a single roll of wallpaper will cover 3 square meters, how many single rolls will it take to cover a wall 2 meters x 5 meters?"

    2. "If a customer buys 2kg. of nails at 16cents a kg., how much would the nails cost?"

    3. "If ceramic tiles are 203mm x 203mm, how many tiles would it take to cover an area 1 meters x 2 meters?"

    Thanks.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    earboth's Avatar
    Joined
    Jan 2006
    From
    Germany
    Posts
    5,829
    Thanks
    123
    Quote Originally Posted by capo-status View Post
    Hey
    ...

    1. "If a single roll of wallpaper will cover 3 square meters, how many single rolls will it take to cover a wall 2 meters x 5 meters?"
    The wall has an area of 10mē. To calculate the amount of rolls you must divide this area by 3 \frac{m^2}{roll} :
    \frac{10 m^2}{3 \frac{m^2}{roll}} = (3 +\frac13)\ rolls

    But you can't buy a \frac13 roll therefore you need 4 single rolls.

    Quote Originally Posted by capo-status View Post
    2. "If a customer buys 2kg. of nails at 16cents a kg., how much would the nails cost?"
    If 1 kg of nails cost 16 cts. than 2 kg = 1 kg + 1 kg will cost 16 cts. + 16 cts. = 32 cts.

    (By the way: Are you certain that you didn't know how to do this problem?)

    Quote Originally Posted by capo-status View Post
    3. "If ceramic tiles are 203mm x 203mm, how many tiles would it take to cover an area 1 meters x 2 meters?"
    1. Calculate the area of one tile: a = 203\ mm \cdot 203 \ mm = 41209\ mm^2

    2. Calculate the total area A= 1000\ mm \cdot 2000 \ mm = 2,000,000\ mm^2

    3. Divide A by a to get the number of tiles. Be aware that you can't buy any fractions of tiles.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Questions regarding solving an ODE
    Posted in the Differential Equations Forum
    Replies: 8
    Last Post: January 22nd 2011, 04:46 PM
  2. Problem Solving - Log. Related Questions
    Posted in the Algebra Forum
    Replies: 3
    Last Post: January 22nd 2010, 02:40 AM
  3. triangle problem solving questions.
    Posted in the Trigonometry Forum
    Replies: 2
    Last Post: July 19th 2008, 10:39 AM
  4. Problem solving questions
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: May 21st 2008, 03:44 PM
  5. 2 problem solving questions
    Posted in the Pre-Calculus Forum
    Replies: 5
    Last Post: August 21st 2007, 06:05 PM

Search Tags


/mathhelpforum @mathhelpforum