Sarah walks into a grocery store with no more than 20 dollars to spend and needs to buy at least 3.5 pounds of flour and at least 2 pounds o

Question

Sarah walks into a grocery store with no more than 20 dollars to spend and needs to buy at least 3.5 pounds of flour and at least 2 pounds of sugar. Flour is 2 dollars per pound and sugar is 1.5 dollars per pound. Let x the amount of flour purchased and y be the amount of sugar purchased? Which of the following systems of inequalities represents this situation?

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Ngọc Diệp 1 month 2021-08-03T16:39:52+00:00 1 Answers 3 views 0

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    2021-08-03T16:41:36+00:00

    Answer:

    x ≥ 3.5

    y ≥ 2

    2x + 1.5y ≤ 20

    Step-by-step explanation:

    Given :

    Total Amount to spend ≤ $20

    Let:

    Amount of flour purchased = x

    Amount of sugar purchased = y

    Cost :

    Flour = $2 per pound

    Sugar = $1.5 per pound

    Pounds of :

    flour to be purchased ≥ 3.5

    Sugar to be purchased ≥ 2

    Hence, the system of inequalities :

    x ≥ 3.5

    y ≥ 2

    Total Cost of x + total cost of y must be less than or equal to total amount

    2x + 1.5y ≤ 20

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )