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12 November, 04:19

One printing press has a fixed daily cost of $50 and a variable cost of $1.50 for every 30 pages printed. A second printing press has a fixed daily cost of $10 and a variable cost of $2 for every 30 pages produced. Question Determine the number of pages for which the total daily costs will be the same. A. 80 B. 1,500 C. 2,400 D. 3,900

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  1. 12 November, 04:28
    0
    2400 pages

    Step-by-step explanation:

    Printer 1 : 50 + 1.50/30 x where x is the number of pages

    Printer 2 : 10 + 2/30 x where x is the number of pages

    Set them equal

    50 + 1.50/30 x = 10 + 2/30 x

    50 + 1/20x = 10 + 1/15 x

    Subtract 1/20x from each side

    50 + 1/20x - 1/20x = 10 + 1/15 x-1/20x

    50 = 10 + 1/15x - 1/20x

    Subtract 10 from each side

    40 = 1/15x - 1/20x

    Get a common denominator

    40 = 4/60x - 3/60x

    40 = 1/60x

    Multiply by 60

    40 * 60 = 1/60x * 60

    2400 = x
  2. 12 November, 04:38
    0
    2400 pages

    Step-by-step explanation:

    First, let's make equations for the daily cost of the first printing press, with y being the total daily cost, and x being the total number of pages printed.

    y=0.05x+50

    Now, let's make an equation for the total daily cost of the second printing press.

    y = (2/30) x+10

    Since both equations are equal to y, let's use the substitution method and set them equal to each other.

    0.05x+50 = (2/30) x+10

    Let's substitute 80 for x into both equations and see if we get a true statement.

    0.05 (80) + 50 = (2/30) (80) + 10

    4+50=16/3+10

    54=46/3 X

    Since this is a false statement, 80 pages cannot be the solution.

    Now, let's try 1500 for x.

    0.05 (1500) + 50 = (2/30) (1500) + 10

    75+50=100+10

    125=110 X

    Since this is a false statement, 1500 pages cannot be the solution.

    Now, let's try 2400 for x.

    0.05 (2400) + 50 = (2/30) (2400) + 10

    120+50=160+10

    170=170

    Since this is a true statement, 2400 pages is the correct solution, and it will lead to a daily cost of $170.
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