9th grade

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bryan berg built an 83-story house of cards in 1995. he used 27,000 playing cards to accomplish this feat. at this same rate, about how many cards would it take to build a 100-story house of cards?

  • 9th grade -

    Let's set up a proportion and let x = the number of cards need for a 100-story house.

    83/27,000 = 100/x

    Cross multiply:

    83x = 2,700,000
    x = 32,530.1205 = 32,531

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