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9 May, 23:49

A copy machine makes 19 copies in 3 minutes and 15 seconds. How many copies does it make per minute?

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Answers (2)
  1. 10 May, 02:53
    0
    5 copies

    Step-by-step explanation:

    19 : 195

    answer x 60
  2. 10 May, 03:25
    0
    10.26secs

    Step-by-step explanation:

    Let's start by converting 3minutes 15seconds to second

    How

    60secs=1min

    Xsec=3mins

    Let's cross multiply

    x=60*3

    X=180secs

    180+15

    195secs

    So 19 copies=195 secs

    1copy=x sec

    Cross multiply

    19x=1*195

    19x=195

    Divide both sides by 19

    X=10.26secs
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