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24 January, 03:21

A medical researcher has two petri dishes containing viruses. Dish A has a population density of 1.2 viruses per square millimeter. Dish A has an area of about 2,826 square millimeters. If both petri dishes have the same population density, approximately how many viruses are in Dish A?

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  1. 24 January, 04:57
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    Given:

    Density = 1.2 viruses per square millimeters

    Area = 2,826 square millimeters

    Density = Number of viruses / Area

    Number of viruses = Density * Area

    Number of viruses = 1.2 viruses / square mm * 2,826 square mm

    Number of viruses = 1.2 viruses * 2,826

    Number of viruses = 3,391.2 viruses
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