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15 October, 23:28

A computer computer monitor as regular priced at 3:20 during A2 Day Sale the price was decreased to 2:40 what is the percentage decrease

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  1. 16 October, 00:04
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    You're looking for the percentage in decimal form in the equation. We'll call it x for right now. So whatever x is it will be multiplied to 3.20 and subtracted from 3.20 to equal 2.40. So, our equation will look like this

    3.20-x (3.20) = 2.40

    subtract both sides of the equation by 3.20 to get

    -x (3.20) = 2.40-3.20

    -x (3.20) = -.80

    now divide both sides of the equation by - 3.20 to single out x on the left side

    x = -.80/-3.20

    x=.25

    to turn this back into a percentage, we move the decimal to the right 2 places

    .25=25%
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