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math

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1. If x people working together make a total of y dollars after an hour of work. how much money will z people make if they work 4 hours at the same rate per person ?

2.Each of the n members of an organization may invite up to 3 guests to a conference. What is the maximum number of members and guests who might attend the conference?

A. n + 3
B. 3n
C. 3n + 4
D. 4n
E. 4n + 4

  • math - ,

    they each make (y/x) dollars per hour
    so
    4 (y/x)(z) = 4 y z/x

    4 n

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