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2 August, 10:47

A shop sells posters in different sizes. The height (h) and width (w) of each poster are linked by the formula h=2.5w - 5 What is the width of a poster that is 10 cm high?

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  1. 2 August, 12:09
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    Answer: 6 cm

    Step-by-step explanation:

    Hi, to answer this question we simply have to substitute h=10 (height) in the formula given:

    h=2.5w - 5

    Replacing:

    10 = 2.5w-5

    Solving for w (width)

    10+5=2.5w

    15 = 2.5w

    15/2.5=w

    w = 6 cm

    In conclusion, the width of a poster that is 10 cm high is 6 cm.

    Feel free to ask for more if needed or if you did not understand something.
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