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March 25, 2017

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An image on a slide is similar to it's projected image. A slide is 35 mm wide ande 21 mm high. It's projected image is 85 cm wide. To the nearest centimeter, how high is the image?

  • math - ,

    35/21 = 85/x

    What I did was put the width of the images on the numerator of the fraction.

    Multiply both sides by 21x to get rid of the denominators. We will have:

    35x = 1785
    Can you solve it from there?

  • math - ,

    51 cm

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