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23 May, 05:32

A bucket holds 243.5 oz of water. The bucket loses 0.3 oz of water per second. In how many seconds will the bucket be 40% full

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  1. 23 May, 05:34
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    Ok so

    t=time in seconds

    therefor the smount lost for t seconds is 0.3 ties t or 0.3t

    loss so it is ngative

    -0.3t

    the question is

    243.5-0.3t=40% of 243.5

    first, find 40% of 243.5

    percent means partst out of 100 so

    40%=40/100=0.4

    'of' means multiply

    40% of 243.5=0.4 ties 243.5=97.4

    now the question is

    243.5-0.3t=97.4

    for ease, multiply whole equation by 10 to make no decimals

    2435-3t=974

    subtract 2435 from b oth sides

    -3t=-1461

    divide both sides by - 3

    t=487

    answer is 487 seconds (aka 8 mins, 7 secons)

    answer is 487 sseconds
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