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March 29, 2017

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The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is

a. 160
b. 163
c. 260
d. 272
e. 408

please answer and explain

  • math - ,

    For one washer you must include the waste and the width so..
    (3/32)+(1/16)=5/32 or 0.15625

    You have 25.5 inches of pipe so how many washers can be taken from it..
    25.5/0.15625=163.2

    Rounding to the lower number as it will only make .2 of the 164th washer means b is the answer

  • math - ,

    number of cuts = (n-1)
    amount wasted = 1/16 * (n-1)

    amount total = (3/32) n + (1/16) n - 1/16
    so
    25 16/32 = 5 n/32 -2/32

    816/32 +2/32 = 5 n/32
    818 = 5 n
    n = 163.6 so 163

  • math - ,

    In da pusayysysy

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