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25 February, 08:01

a mixed seed packet is bought from a flower shop. on the packet it says "the number of white flowers to yellow flowers is approximately 3:5". If there are 160 seeds in the packet how many yellow flowers would you expect

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  1. 25 February, 10:39
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    Let w be the number of white flowerslet y be the number if yellow flowers

    the number of white flowers to yellow flowers is approximately 3:5

    sow divided by y = 3 divided by 5

    w: y = 3:5

    5 w = 3 y

    w = 3y / 5

    there are 160 seeds

    so

    y + w = 160 we replace the w in the equation w = 3y / 5

    y + 3y / 5 = 160

    5y + 3y = 160 * 5

    8y = 800

    y = 800/8 = 100 the number of yellow flowers

    and w = 160 - y = 160 - 100 = 60 the number of white flowers
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