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9 December, 17:53

Billy and Maria mow lawns. Billy earned $15 the first day and $20 every day after that. Maria earned $10 the first day and $25 every day after that. Find how much each earns after 15 days. How do Billy's earnings compare to Maria's?

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  1. 9 December, 20:14
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    Step-by-step explanation:

    Billy and Maria mow lawns. Billy earned $15 the first day and $20 every day after that. This means the if Billy mowed lawns for x days after the first day, the total amount earned by Billy would be

    15 + 20x

    Maria earned $10 the first day and $25 every day after that. This means the if Maria mowed lawns for y days after the first day, the total amount earned by Maria would be

    10 + 25y

    To determine how much each earns after 15 days, it becomes

    For Billy, x = 15

    Amount earned = 15 + 20*15 = $315

    For Maria, y = 15

    Amount earned = 10 + 25*15 = $385

    Maria earns more than Billy
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