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19 July, 22:42

Morley Cunningham computed the unit price of an 8-count package of hamburger buns and found them to be $0.03 more per bun than the unit price of a 10-count package. If the 8-count package costs $0.45 less than the cost of the 10-count package, find the cost of the 10-count package.

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  1. 19 July, 22:58
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    Let the cost of each bun in 8 count package is x and the cost of each bun in 10 count package is y.

    It is given that the unit price of an 8-count package of hamburger buns is $ 0.03 more than the unit price of a 10-count package. So we can write the equation:

    x = y + 0.03 (1)

    The 8-count package costs $0.45 less than the cost of the 10-count package. We can write this in equation as:

    8x = 10y - 0.45 (2)

    Using the value of x from (1) in equation (2) we get:

    8 (y + 0.03) = 10y - 0.45

    8y + 0.24 = 10y - 0.45

    0.24 + 0.45 = 10y - 8y

    0.69 = 2y

    y = $ 0.345

    This means the unit price of 10 count package of hamburger buns is $ 0.345. So the cost of entire pack will be 10 x 0.345 = $ 3.45

    Thus, the cost of 10-count package is $3.45
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