spreads is jointly proportional to the number of people who have heard the

# Spreads is jointly proportional to the number of

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spreads is jointly proportional to the number of people whohave heard the rumor and to the number of people whohave not heard it. Given that the rumor is spreading at therate of 20 people per hour when 200 people have heard it,express the rate at which the rumor is spreading in terms ofthe number of people who have heard it.
In a community of 8,000 people, the rate at which a rumorspreads is jointly proportional to the number of people whohave heard the rumor and to the number of people whohave not heard it. Given that the rumor is spreading at therate of 20 people per hour when 200 people have heard it,express the rate at which the rumor is spreading in terms ofthe number of people who have heard it.Solution: Letrpeople per hour be the rate at which therumor spreads in a community of 8,000 people whenxpeople have heard the rumor. Then,
In a community of 8,000 people, therateat which a rumorspreads isjointly proportionalto thenumber of people whohave heard the rumorand to thenumber of people whohave not heard it.Given that the rumor is spreading at therate of 20 people per hour when 200 people have heard it,express the rate at which the rumor is spreading in terms ofthe number of people who have heard it.Solution: Letrpeople per hour be the rate at which therumor spreads in a community of 8,000 people whenxpeople have heard the rumor. Then,r=kx(8000-x)
In a community of 8,000 people, the rate at which a rumorspreads is jointly proportional to the number of people whohave heard the rumor and to the number of people whohave not heard it. Given that the rumor is spreading at therate of 20 people per hour when 200 people have heard it,express the rate at which the rumor is spreading in terms ofthe number of people who have heard it.Solution: Letrpeople per hour be the rate at which therumor spreads in a community of 8,000 people whenxpeople have heard the rumor. Then,r=kx(8000-x)20 =k (200)
In a community of 8,000 people, the rate at which a rumor spreads is jointly proportional to the number of people who have heard the rumor and to the number of people who have not heard it. Given that the rumor is spreading at the rate of 20 people per hour when 200 people have heard it , express the rate at which the rumor is spreading in terms of the number of people who have heard it. Solution: Let r people per hour be the rate at which the rumor spreads in a community of 8,000 people when x people have heard the rumor. Then, r = kx (8000 - x ) 20 = k (200)(8000 - 200)
In a community of 8,000 people, the rate at which a rumor spreads is jointly proportional to the number of people who have heard the rumor and to the number of people who have not heard it. Given that the rumor is spreading at the rate of 20 people per hour when 200 people have heard it, express the rate at which the rumor is spreading in terms of the number of people who have heard it.

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