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12 July, 07:12

A construction worker bought several bottles of juice for $3 at the convenience store. she paid them with a $20 bill. If J represents the number of bottles of juice, write an expression for the change she should receive.

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  1. 12 July, 07:34
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    The expression for the change received = $20 - 3 J

    Step-by-step explanation:

    The cost of 1 juice bottle = $3

    Let us assume the number of juice bottles bought = J

    The amount of bill paid = $20

    Now, the cost of J juice bottles = J x (Coat of 1 juice bottle)

    = J x ($3) = 3J

    Now, the Change Returned = $20 bill - The cost of J juice bottles

    = $20 - 3 J

    or, Change Returned = $20 - 3 J

    Hence, the expression for the change received = $20 - 3 J
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