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23 September, 10:15

A sandwich shop is ordering apples and grapes to make chicken salad. Apples cost $2.19 per pound and grapes cost $2.60 per pound. If they ordered a total of 20 pounds of apples and grapes and pair $35.80. How many pounds of grapes did they order?

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  1. 23 September, 12:21
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    Grapes=19.51

    Step-by-step explanation:

    Apples=$2.19 per pound

    Grapes=$2.60 per pound

    Apples+Grapes=20 pounds

    A+G=20

    A=20-G

    Equation is

    PaA+PgG=35.80

    2.19A+2.60G=35.80

    2.19 (20-G) + 2.60G=35.80

    43.8-2.19G+2.60G=35.80

    43.8-0.41G=35.80

    -0.41G=35.80-43.8

    -0.41G=-8

    Divide both sides by 0.41

    G=19.51 pounds

    Recall

    A=20-G

    A=20-19.51

    A=0.49 pounds
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