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3 April, 23:59

Lynn plans to sell lemonade to raise at least $40 for the science fair. She sells each cup of lemonade for $0.70 and spends $0.23 per cup for supplies. Set up and solve an inequality to find out the minimum number of cups she must sell to reach her goal.

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  1. 4 April, 03:40
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    The minimum number of cups she must sell to reach her goal=43 cups

    Step-by-step explanation:

    Total earnings=Total Lemonade sales-Supplies expenditure

    where;

    Total earnings=$40

    Total Lemonade sales=Price per cup*Number of cups sold (n) = (0.7*n) = 0.7n

    Supplies Expenditure=0.23 per cup = (0.23*n) = 0.23n

    Replacing;

    40=0.7n+0.23n

    Inequality; 0.7n+0.23n=40

    Solving;

    0.93n=40

    n=40/0.93) = 43 cups

    The minimum number of cups she must sell to reach her goal=n=43 cups
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