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27 August, 12:39

How many pounds of chocolate worth $1.5 a pound must be mixed with 10 pounds of chocolate worth 80 cents a pound to produce a mixture worth $1 a pounds.

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  1. 27 August, 13:11
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    Hence, 4 pounds of chocolates worth $1.5 a pound should be mixed to 10 pounds of chocolates worth 80 cents a pound to produce a mixture worth $1 a pounds.

    Step-by-step explanation:

    Let x denotes the number of chocolates that cost $1.5 a pound.

    and y denotes the number of chocolates that cost 80 cents a pound.

    We know that 1 cent=0.01 dollars.

    80 cents=80*0.01=0.80 dollars.

    we are given y=10

    now we need to find 'x' using the above information by forming a linear equation.

    1.5x+0.80y=1 (y+x)

    as y=10

    1.5x+8 = (10+x)

    1.5x+8=10+x

    1.5x-x=10-8

    0.5x=2

    x=2/0.5

    x=4

    Hence, 4 pounds of chocolates worth $1.5 a pound should be mixed to 10 pounds of chocolates worth 80 cents a pound to produce a mixture worth $1 a pounds.
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