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2 August, 04:10

Salma's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs salma $5.95 per pound, and type b coffee costs $4.45 per pound. this month's blend used twice as many pounds of type b coffee as type a, for a total cost of $490.05. how many pounds of type a coffee were used?

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  1. 2 August, 06:08
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    For this case, the first thing we must do is define variables.

    We have then:

    x = pounds of type a coffee

    y = pounds of type b coffee

    We now write the system of equations:

    5.95x + 4.45y = 490.05

    y = 2x

    Solving the system of equations we have:

    x = 33

    y = 66

    Answer:

    were used 33 pounds of type a coffee
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