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28 August, 14:31

Joan spend half of her paycheck going to the movies. She washed the family car and earned 7 dollars. What is her weekly paycheck if she ended up with 18 dollars?

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  1. 28 August, 14:47
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    her weekly allowance is $16

    Step-by-step explanation:

    Let x represent Joan's weekly paycheck.

    Joan spent half of her paycheck going to the movies. This means that the total amount that she spent at the movies is x/2. The amount that she is left with would be

    x - x/2 = x/2

    She washed the family car and earned 7 dollars. This means that the total amount left with her is

    x/2 + 7

    if she ended with 18 dollars, it means that

    x/2 + 7 = 18

    x/2 = 18 - 7 = 11

    x = 2 * 11 = $22
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