Ask Experts Questions for FREE Help !
Ask
    PSU FAN's Avatar
    PSU FAN Posts: 3, Reputation: 1
    New Member
     
    #1

    Sep 24, 2009, 07:40 AM
    Systems of Linear Equations: Matrices
    I am having trouble setting up the equations for this problem. I think that I am reading too much into it. Any help would be great. Thank you in advance.

    As a business owner there are many decisions that you need to make on a daily basis, such as ensuring you reach the highest production levels possible with your company’s products. Your company produces two models of bicycles: Model A and Model B. Model A takes 2 hours to assemble, where Model B takes 3 hours to assemble. Model A costs $25 to make per bike where Model B costs $30 to make per bike. If your company has a total of 34 hours and $350 available per day for these two models, how many of each model can be made in a day?

    * Solve the equations for the different bicycle models that can be made daily with the desired technique learned (graphing, substitution, elimination, matrix).

    * Explain how to check your solution for both equations.
    rehmanvohra's Avatar
    rehmanvohra Posts: 739, Reputation: 27
    Senior Member
     
    #2

    Sep 24, 2009, 10:13 AM

    I would suggest simultaneous equation:
    Let a be Model A
    Let b be Model B

    Equation for hours:
    2a + 3b = 34 ----------------- I

    Equation for costs
    25a + 30b = 350 ------------- II

    Multiply equation I by 10
    20a +30b = 340 --------------III
    25a + 30b = 350 --------------II

    Deducting II from III, we get
    -5a = -10
    or a = 2

    Substitute the value of a in equation I
    2 x 2 + 3b = 34
    3b = 34 - 4
    b = 10

    Check:

    Hours
    Model A 2 cycles x 2 hours = 4 hours
    Model B 10 cycles x 3 hours = 30 hours
    Total Hours 34

    Costs
    Model A 2 cycles x $25 = $50
    Model B 10 cycles x $30 = $300
    Total costs $350

    Q.E.D.
    PSU FAN's Avatar
    PSU FAN Posts: 3, Reputation: 1
    New Member
     
    #3

    Sep 24, 2009, 03:10 PM

    rehmanvohra,
    Thank you for your help. I had the answers 4 & 10, but could not figure out the equations for the check. Thank you again.

    PSU FAN

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Solving systems of linear equations using the gaussian method [ 1 Answers ]

I don't understand how to solve for solving systems of linear equations using the Gaussian elimination method. x - 3y + 4z = 1 4x - 10y + 10z = 4 -3x - 9y-5z = -6 could someone explain how this is done

Linear systems and equations [ 2 Answers ]

Could someone possibly help me with this? I don't get it no matter how many times I read it. Thanks for any help you can be. You recently started the paperwork to purchase your new home, and you were just notified that you can move into the house in 2 weeks. You decide to hire a moving...

Linear systems and equations [ 2 Answers ]

Can someone help me with this problem? I'd be grateful. The Everton College store paid 1532 for an order of 42 calculators. The store paid $8 ea. for science calculators. The others, all graphing calculators, cost the store $54 ea. How many of each type of calculators was ordered? Thank-you for...

Solving simeltaneous equations using matrices [ 4 Answers ]

How can you solve a pair of equations with 2 variables if you've been given a matrix with the variables? Like suppose you're given (4 -1 ) (-3 2 ) and the two equations given are y = 4x + 8 2y -3x + 1 = 0


View more questions Search