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Math Help - Perimeters and Measurements...Urgent assistance!!!

  1. #1
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    Red face Perimeters and Measurements...Urgent assistance!!!

    Here are a list of problems in which I seek assistance on...if you could include the calculation (ways/steps of getting the answer, that would be highly appreciated)

    1. Estella borrowed $900. Interest on this loan is $108. How much will estella have to repay?

    2. You are cooking a 5 1/4 pound roast to serve 14 people. How much meat will each person receive?

    3. How many 4' * 8' sheets of drywall do you need for the walls of a 12' * 20' room, 8ft high?

    4. If ceramic tiles are 8" * 4", how many tiles would it take to cover an area 4' * 6'?

    5. If a customer buys 20 2*4's 8ft long, at $4.75 each, how much would the 2*4's cost?

    thanks :-)
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  2. #2
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    1. Estella borrowed $900. Interest on this loan is $108. How much will estella have to repay?

    $900 + $108 =$1008

    2. You are cooking a 5 1/4 pound roast to serve 14 people. How much meat will each person receive?

    5.25/14 =0.375

    3. How many 4' * 8' sheets of drywall do you need for the walls of a 12' * 20' room, 8ft high?

    (12*20*8)/(4*8)=60

    4. If ceramic tiles are 8" * 4", how many tiles would it take to cover an area 4' * 6'?

    4 feet = 48 inches. 6 feet = 72 inches. (48*72)/(8*4)=108

    5. If a customer buys 20 2*4's 8ft long, at $4.75 each, how much would the 2*4's cost?

    I don't really understand this question. What does "20 2*4's 8ft long" mean?
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  3. #3
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    for the last question... the person bought 20 2 by 4's
    like 20 pieces of wood.

    oh, and for the second question, how did you get 5.25?
    Last edited by mr fantastic; March 8th 2009 at 03:40 PM. Reason: Merged posts
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  4. #4
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    Did I understand correctly that 5 1/4 meant 5\frac{1}{4} as in 5 and a quarter? That's equal to 5.25.

    Isn't 2 * 4 the measurement of wood, where does 8ft come into it?

    And lastly, why have you posted this in several places?
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  5. #5
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    Quote Originally Posted by Love-Guru View Post
    5. If a customer buys 20 2*4's 8ft long, at $4.75 each, how much would the 2*4's cost?
    20 pieces of wood at $4.75 each (the dimensions of each piece doesn't matter)

    $ 4.75 \times 20
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  6. #6
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    ...

    Not sure, that's what the question says.
    on another note: thank guys.. really appreciated

    oh, How did you type out that fraction? ex: ... I copied and pasted that..mine looks like this.. 5 1/4
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  7. #7
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    ...

    thanks*
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  8. #8
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    Quote Originally Posted by Love-Guru View Post
    Not sure, that's what the question says.
    on another note: thank guys.. really appreciated

    oh, How did you type out that fraction? ex: ... I copied and pasted that..mine looks like this.. 5 1/4
    Take a quick look at: http://www.mathhelpforum.com/math-he...-tutorial.html

    And maybe press 'thanks' if you feel like it?
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