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15 November, 16:25

A science textbook uses a scale of 3cm=2mm for drawings of small insects. What is the actual length of a flea if the drawing is 7.5cm long?

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  1. 15 November, 16:39
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    The actual flea is 5mm long.

    Step-by-step explanation:

    Identify what you know:

    1) 3cm = 2mm

    2) The drawing is 7.5cm

    7.5cm = x mm

    7.5 cm divided by 3cm = 2.5

    2mm x 2.5 = 5mm
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